Yamaha PZ50RTG, PZ50XTG, PZ50MTG, PZ50MPG User Manual

OWNER’S MANUAL
MANUEL DU PROPRIÉTAIRE
USO E MANUTENZIONE
INSTRUKTIONSBOK
OMISTAJAN KÄSIKIRJA
EIERHÅNDBOK

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I

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SF

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Read this manual carefully before operating this vehicle.
Il convient de lire attentivement ce manuel avant la première utilisation du véhicule.

I

Leggere attentamente questo manuale prima di utilizzare questo veicolo.
Läs den här instruktionsboken noga innan snöskotern används.
Lue tämä käsikirja huolellisesti ennen moottorikelkan käyttöä.
Les denne håndboken nøye før du tar kjøretøyet i bruk.

PZ50RTG

PZ50XTG

PZ50MTG

PZ50MPG

8GK-28199-S9

Original instructions

Notice originale

Istruzioni originali

Bruksanvisning i original

Alkuperäiset ohjeet

Opprinnelige instruksjoner

PRINTED IN JAPAN

2015.04-0.3×1 CR

PRINTED ON RECYCLED PAPER

IMPRIMÉ SUR PAPIER RECYCLÉ

STAMPATO SU CARTA RICICLATA

TRYCKT PÅ ÅTERVUNNET PAPPER

PAINETTU UUSIOPAPERILLE

TRYKKET PÅ RESIRKULERT PAPIR

Read this manual carefully

before operating this vehicle.

OWNER’S MANUAL

PZ50RTG

PZ50XTG

PZ50MTG

PZ50MPG

8GK-28199-S9-E0

ESU1254E

Read this manual carefully before operating this vehicle. This manual

should stay with this vehicle if it is sold.

EC Declaration of Conformity

conforming to Directive, 2006/42/EC

We, YAMAHA MOTOR CO., LTD. 2500 Shingai, Iwata, Japan,

declare in sole responsibility, that the product

RPZ50M (PZ50MT) ( JYE8GP00∗GA015046- )
RPZ50MP (PZ50MP) ( JYE8GR00
RPZ50S (PZ50RT) ( JYE8GN00
RPZ50ST (PZ50XT) ( JYE8JT00

to which this declaration applies, conforms to the essential health and safety
requirements of Directive, 2006/42/EC

(

)

If applicable

and to the other relevant Directive of EEC

(

Title and

/

or number and date of issue of the other Directives of EEC

(

)

If applicable

To effect correct
stated in the Directives of EEC, the
specifications were consulted:

application

(

Title and

/

or number and date of issue of standards and/or specifications

(

Make, model

2004/108/EC

of the

essential

following-standards and/or

– – – – – –

GA021911- )

∗

GA012177- )

∗

GA001410- )

∗

)

health

and safety requirements

)

technical

)

Authorized Representative

YAMAHA MOTOR EUROPE N.V.
Koolhovenlaan 101, 1119 NC Schiphol-Rijk, The Netherlands

Signature

General Manager
Engineering Div., RV Business Unit
Business Development Operations
YAMAHA MOTOR CO., LTD.

Date of Issue

Akihiro Tsuzuki

14 October, 2014

ESU10132

WARNING

Congratulations on your purchase of a
Yamaha snowmobile. This model is the result
of Yamaha’s vast experience in the produc­tion of fine sporting and touring snowmo­biles. It represents the high degree of
craftsmanship and reliability that have made
Yamaha a leader in these fields.
This manual will give you an understanding of
the operation, inspection, and basic mainte­nance of this snowmobile. If you have any
questions concerning the operation or main­tenance of your snowmobile, please consult
a Yamaha dealer.
Yamaha continually seeks advancements in
product design and quality. Therefore, while
this manual contains the most current prod­uct information available at the time of print­ing, there may be minor discrepancies
between your snowmobile and this manual. If
there is any question concerning this manual,
please consult a Yamaha dealer.

EWS00671

Introduction

PZ50RTG

PZ50XTG
PZ50MTG
PZ50MPG

OWNER’S MANUAL

©2015 by Yamaha Motor Co., Ltd.

1st Edition, February 2015

All rights reserved.

Any reprinting or unauthorized use

without the written permission of

Yama h a Mot o r C o., L t d.

is expressly prohibited.

Printed in Japan.

Please read this manual carefully before
operating this snowmobile. Do not at­tempt to operate this snowmobile until
you have attained adequate knowledge of
its controls and operating features.
Regular inspections and careful mainte­nance, along with good operating tech­niques, will help ensure that you safely
enjoy the capabilities and reliability of this
snowmobile.

Important manual information

WARNING

NOTICE

TIP

ESU10152

Particularly important information is distin­guished in this manual by the following nota­tions.

This is the safety alert symbol. It is used
to alert you to potential personal injury haz­ards. Obey all safety messages that follow
this symbol to avoid possible injury or death.

EWS00022

A WARNING indicates a hazardous situa­tion which, if not avoided, could result in
death or serious injury.

ECS00012

A NOTICE indicates special precautions
that must be taken to avoid damage to the
snowmobile or other property.

A TIP provides key information to make pro­cedures easier or clearer.

Contents

Location of the important labels...... 1

Safety information ........................... 10

Description....................................... 13

Control functions............................. 15

Main switch ................................... 15

Throttle lever ................................. 15

Throttle override system

(T.O.R.S.).................................... 15

Multi-function meter unit............... 16

High beam indicator light ............. 17

Low coolant temperature indicator

light ........................................... 17

Knock control system indicator

light ........................................... 18

Drive indicator light and reverse

indicator light ............................ 18

Fuel meter and grip/thumb warmer

level indicator ............................. 19

Fuel level warning indicator ......... 20

Oil level/pressure warning

indicator .................................... 20

Coolant temperature warning

indicator .................................... 21

Self-diagnosis device .................... 21

Drive select switch ........................ 22

Engine stop switch ....................... 22

Headlight beam switch

“LIGHTS” ................................... 22

Grip/thumb warmer adjusting

switch......................................... 23

Auxiliary DC jack (PZ50MP) .......... 23

Brake lever .................................... 24

Parking brake lever ....................... 24

Drive guard.................................... 24

V-belt holder (PZ50MP)................. 25

Passenger grip warmer switch

(PZ50MP) ................................... 25

Backrest (PZ50MP) ....................... 26

Storage pouch .............................. 26

Rear carrier (PZ50MP) .................. 27

Tow hitch [PZ50MP (RUS)] and

tow hitch bracket

[PZ50MP (FIN)(SWE)]................. 28

Fuel ............................................... 28

Suspension ................................... 29

Pre-operation checks ..................... 37

Pre-operation check list................ 37

Operation ......................................... 39

Starting the engine........................ 39

Break-in ........................................ 40

Riding your snowmobile ............... 40

Maximizing drive track life ............ 44

Strap (PZ50MT)............................. 45

Driving........................................... 45

Stopping the engine ..................... 46

Transporting.................................. 46

Periodic maintenance and

adjustment....................................... 48

Periodic maintenance chart for the

emission control system............ 49

General maintenance and

lubrication chart ......................... 50

Tool kit .......................................... 52

Recommended equipment ........... 52

Removing and installing the

shroud and covers ..................... 52

Checking the spark plugs ............. 56

Adjusting the engine idling

speed ......................................... 57

Adjusting the throttle lever free

play (PZ50RT / PZ50XT /

PZ50MT) .................................... 57

Checking the throttle lever free

play (PZ50MP) ........................... 58

Checking the throttle override

system (T.O.R.S.) ....................... 58

Checking the air filter .................... 59

High-altitude settings.................... 60

Contents

Valve clearance ............................. 60

Engine oil and oil filter cartridge.... 60

Cooling system ............................. 64

V-belt............................................. 65

Drive chain housing....................... 67

Brake and parking brake ............... 69

Skis and ski runners ...................... 71

Steering system ............................ 73

Drive track and slide runners ........ 73

High-profile pattern drive track ..... 76

Lubrication .................................... 76

Replacing a headlight bulb ........... 77

Adjusting the headlight beams ..... 78

Fittings and fasteners.................... 78

Battery........................................... 78

Replacing a fuse ........................... 79

Troubleshooting .............................. 81

Storage............................................. 84

Specifications .................................. 86

Consumer information.................... 89

Identification number records ....... 89

WARRANTY .................................. 89

Index ................................................. 90

Location of the important labels

11 12 13

14

8

9

1

23

15

7
6

5

4

10

ESU1267A

Read and understand all of the labels on your vehicle. They contain important information for
safe and proper operation of your vehicle. Never remove any labels from your vehicle. If a label
becomes difficult to read or comes off, a replacement label is available from your Yamaha
dealer.

For EUROPE

1

Location of the important labels

8GC-2415E-E0

• PREMIUM UNLEADED GASOLINE.
MIN. OCTANE (PUMP : 91 RON : 95)

• ESSENCE SUPER SANS PLOMB.
INDICE D’OCTANE MIN. (POMPE : 91 RON : 95)

TUNE-UP SPECIFICATIONS

ENGINE

1.SPARK PLUG

2.SPARK PLUG GAP

3.IDLE SPEED

SPECIFICATIONS DE LA MISE AU POINT

MOTEUR

1.TYPE DE BOUGIE

2.ECARTEMENT DES ÉLECTRODES

3.RÉGIME DE RALENTI

CR9EKB(NGK)

0.6 ~ 0.7 mm (0.024 ~ 0.028 in)
1800 ± 100 r/min

CR9EKB(NGK)

0.6 ~ 0.7 mm

1800 ± 100 r/min

8GC

8GC-1417E-01

2 PZ50RT/PZ50XT/PZ50MT
3 PZ50MP

5

4 PZ50MT

1

2

20kg {44lbs}

MAX.BELASTNING/RASKAIN TAAKKA

8FM-24897-11

DRIVE

1. CHAIN CASE OIL Q’TY

2. CHAIN CASE OIL TYPE

3. TRACK TENSION

* FOR MORE INFO: SEE SERVICE MANUAL FOR THIS
MODEL.
* SPECIFICATIONS SUBJECT TO CHANGE WITHOUT
NOTICE.

ENTRAÎNEMENT

1. CAPACITÉ D’HUILE DU CARTER DE CHAÎNE

2. TYPE D’HUILE DU CARTER DE CHAÎNE

3. FLÈCHE DE LA CHENILLE
* POUR PLUS DE DÉTAIL: VOIR LE MANUEL D’ATELIER

POUR CE MODÈLE.
* LES CARACTÉRISTIQUE TECHNIQUES SONT
SUSCEPTIBLES DE CHANGER SANS NOTIFICATION
PRÉALABLE.

250 cm³ (8.5 oz)

GL-3 75W or 80W

30 ~ 35 mm (1.18 ~ 1.38 in)/100 N (10 kg, 22 lb)

250 cm³

GL-3 75W or 80W

8ES-47578-00

30 ~ 35 mm/100 N (10 kg)

TUNE-UP SPECIFICATIONS

SPECIFICATIONS DE LA MISE AU POINT

<

1176 N

<

147 N

8HF-2817S-00

VARNING VAROITUS

8JT-77765-S0

6

7

8 PZ50XT/PZ50MT

9 PZ50XT/PZ50MT

10 PZ50MP 11 PZ50MP

Location of the important labels

3

Location of the important labels

8GN-2156A-10

RPZ50S

58.8 kW 251 kg

8GP-2156A-10

RPZ50M

58.8 kW 263 kg

8JT-2156A-10

RPZ50ST

58.8 kW 263 kg

8GR-2156A-10

RPZ50MP

58.8 kW 305 kg

8AC-2817L-00

YAMAHA MOTOR CO., LTD.
2500 SHINGAI, IWATA, JAPAN

2015

WARNING

This unit contains high pressure nitrogen gas.
Mishandling can cause explosion.

• Read owner’s manual for instructions.

• Do not incinerate, puncture or open.

AVERTISSEMENT

Cette unité contient de I’azote à haute pression.
Une mauvaise manipulation peut entraîner d’explosion.

• Voir le manuel d’utilisateur pour les instructions.

• Ne pas brûler ni perforer ni ouvrir.

8GT-22259-50

13 PZ50RT

13 PZ50MT

13 PZ50XT

13 PZ50MP

12

15 PZ50RT

14
15 PZ50MT/PZ50XT/PZ50MP

4

Location of the important labels

******

*** kW *** kg

1

23

YAMAHA MOTOR CO., LTD.
2500 SHINGAI, IWATA, JAPAN

****

1

Read the Owner’s manual.

This unit contains high-pressure nitrogen gas.
Mishandling can cause an explosion. Do not incinerate,
puncture or open.

This pictogram shows the sled hitch tow weight limit
(combined weight of the sled and all cargo in the sled).
Overloading can cause loss of control.
Loss of control can result in severe injury or death.

This pictogram shows the sled hitch tongue weight limit
(weight on the sled tongue).
Overloading can cause loss of control.
Loss of control can result in severe injury or death.

1

2

3

Model Name
Max. Power
Mass In Running Order

1

Year of construction

Familiarize yourself with the following pictograms and read the explanatory text.

5

Location of the important labels

11 12 13 14

15

1

17

23

16

7
6

5

4

10

8

9

For RUSSIA

6

Location of the important labels

8GC-2415E-E0

• PREMIUM UNLEADED GASOLINE.
MIN. OCTANE (PUMP : 91 RON : 95)

• ESSENCE SUPER SANS PLOMB.
INDICE D’OCTANE MIN. (POMPE : 91 RON : 95)

8GP-77761-30

8GR-77761-R1

TUNE-UP SPECIFICATIONS

ENGINE

1.SPARK PLUG

2.SPARK PLUG GAP

3.IDLE SPEED

SPECIFICATIONS DE LA MISE AU POINT

MOTEUR

1.TYPE DE BOUGIE

2.ECARTEMENT DES ÉLECTRODES

3.RÉGIME DE RALENTI

CR9EKB(NGK)

0.6 ~ 0.7 mm (0.024 ~ 0.028 in)
1800 ± 100 r/min

CR9EKB(NGK)

0.6 ~ 0.7 mm

1800 ± 100 r/min

8GC

8GC-1417E-01

2 PZ50MT
3 PZ50MP

4 PZ50MT

5

1

7

Location of the important labels

20kg {44lbs}

MAX.BELASTNING/RASKAIN TAAKKA

8FM-24897-11

DRIVE

1. CHAIN CASE OIL Q’TY

2. CHAIN CASE OIL TYPE

3. TRACK TENSION

* FOR MORE INFO: SEE SERVICE MANUAL FOR THIS
MODEL.
* SPECIFICATIONS SUBJECT TO CHANGE WITHOUT
NOTICE.

ENTRAÎNEMENT

1. CAPACITÉ D’HUILE DU CARTER DE CHAÎNE

2. TYPE D’HUILE DU CARTER DE CHAÎNE

3. FLÈCHE DE LA CHENILLE
* POUR PLUS DE DÉTAIL: VOIR LE MANUEL D’ATELIER

POUR CE MODÈLE.
* LES CARACTÉRISTIQUE TECHNIQUES SONT
SUSCEPTIBLES DE CHANGER SANS NOTIFICATION
PRÉALABLE.

250 cm³ (8.5 oz)

GL-3 75W or 80W

30 ~ 35 mm (1.18 ~ 1.38 in)/100 N (10 kg, 22 lb)

250 cm³

GL-3 75W or 80W

8ES-47578-00

30 ~ 35 mm/100 N (10 kg)

TUNE-UP SPECIFICATIONS

SPECIFICATIONS DE LA MISE AU POINT

8HA-77762-R0

<

1176 N

<

147 N

8HF-2817S-00

8JT-77765-R0

6

7

8 PZ50MT

9 PZ50MT

10 PZ50MP 11 PZ50MP

8

8GP-2156A-10

RPZ50M

58.8 kW 263 kg

8GR-2156A-10

RPZ50MP

58.8 kW 305 kg

8AC-2817L-00

YAMAHA MOTOR CO., LTD.
2500 SHINGAI, IWATA, JAPAN

2015

8JE-77764-R0

8HN-2811S-00

14 15

16

13 PZ50MT

13 PZ50MP

17

12

Location of the important labels

9

Safety information

ESU10194

As the vehicle’s owner, you are responsible
for the safe and proper operation of your
snowmobile. When you ride your snowmo­bile, you must know and use the following for
your safety. Severe injury or death may result
if you ignore any of the following.

Before you operate your snowmobile

 Read the Owner’s Manual and all labels.

Become familiar with all of the operating
controls and their function. Consult a
Yamaha dealer about any control or func­tion you do not understand.

 Wear protective clothing. Wear an ap-

proved helmet, and a face shield or gog­gles. Also, wear a good quality snowmobile
suit, boots, and a pair of gloves or mittens
that will permit use of your thumbs and fin­gers for operation of the controls.

creases the possibility of an accident or
equipment damage. See page 37 for a list
of pre-operation checks.

 Apply the parking brake before starting the

engine. Never drive the snowmobile with
the parking brake applied. This may over­heat the brake disc and reduce braking
ability.

While using your snowmobile

 This snowmobile was not manufactured for

use on public streets, roads, or highways.
Such use is prohibited by law, and you
could collide with another vehicle.

 PZ50RT, PZ50XT and PZ50MT are de-

signed to carry the OPERATOR ONLY.
Passengers are prohibited. Carrying a pas­senger can cause loss of control.

 Do not operate the snowmobile after or

while drinking alcohol or taking drugs. Your
ability to operate the snowmobile is re­duced by the influence of alcohol or drugs.

Prepare your snowmobile

 Perform the pre-operation checks each

time you use the vehicle to make sure it is
in safe operating condition. Failure to in­spect or maintain the vehicle properly in-

10

 Be careful where you ride. There may be

obstacles hidden beneath the snow. Stay
on established trails to minimize your expo­sure to hazards. Ride slowly and cautiously
when you ride off of established trails. Hit­ting a rock or stump, or running into wires
could cause an accident and injury.

 This snowmobile is not designed for use on

surfaces other than snow or ice. Use on
dirt, sand, grass, rocks, or bare pavement
may cause loss of control and may dam­age the snowmobile.

Safety information

 Always ride with other snowmobilers when

going on a ride. You may need help if you
run out of fuel, have an accident, or dam­age your snowmobile.

 Many surfaces such as ice and hard-

packed snow require much longer stop­ping distances. Be alert, plan ahead and
begin decelerating early. The best braking
method on most surfaces is to release the
throttle and apply the brake gently—not
suddenly.

Avoid carbon monoxide poisoning

All engine exhaust contains carbon monox­ide, a deadly gas. Breathing carbon monox­ide can cause headaches, dizziness,
drowsiness, nausea, confusion, and eventu­ally death. Carbon monoxide is a colorless,
odorless, tasteless gas which may be present
even if you do not see or smell any engine ex­haust. Deadly levels of carbon monoxide can
collect rapidly and you can quickly be over­come and be unable to save yourself. Also,
deadly levels of carbon monoxide can linger
for hours or days in enclosed or poorly-venti­lated areas. If you experience any symptoms
of carbon monoxide poisoning, leave the
area immediately, get fresh air, and SEEK
MEDICAL TREATMENT.
 Do not run the engine indoors. Even if you

try to ventilate engine exhaust with fans or
open windows and doors, carbon monox­ide can rapidly reach dangerous levels.

 Do not run the engine in poorly ventilated

or partially enclosed areas such as barns,
garages, or carports.

 Do not run the engine outdoors where en-

gine exhaust can be drawn into a building
through openings such as windows and
doors.

Genuine Yamaha Accessories

Choosing accessories for your snowmobile is
an important decision. Genuine Yamaha Ac­cessories, which are available only from a
Yamaha dealer, have been designed, tested,
and approved by Yamaha for use on your
snowmobile. Many companies with no con­nection to Yamaha manufacture parts and
accessories or offer other modifications for
Yamaha vehicles. Yamaha is not in a position
to test the products that these aftermarket
companies produce. Therefore, Yamaha can
neither endorse nor recommend the use of
accessories not sold by Yamaha or modifica­tions not specifically recommended by
Yamaha, even if sold and installed by a
Yamaha dealer.

Maintenance and storage

 When laying the snowmobile on its side for

maintenance, use a suitable stand to keep
it in a stable and level position.

 Do not leave the snowmobile on its left side

for an extended period of time. Fuel may
leak out from the fuel breather hose.

 Do not allow anyone to stand behind the

snowmobile when starting, inspecting, or
adjusting the snowmobile. A broken track,
track fittings, or debris thrown by the track
could be dangerous to the operator or by­standers.

 Modifications made to the snowmobile not

approved by Yamaha, or the removal of
original equipment may render your snow­mobile unsafe for use, which may cause
severe personal injury. Modifications may
also make the snowmobile illegal to use.

 Never store the snowmobile with fuel in the

fuel tank inside a building where ignition
sources are present such as hot water and
space heaters, an open flame, sparks,

11

Safety information

clothes dryers, and the like. Allow the en­gine to cool off before storing the snowmo­bile in an enclosed space.

12

ESU10262

PZ50XT PZ50MP

PZ50RT PZ50MT

19

1,2 3 144,5,6,7,8

18 17 19

1,2 3 144,5,6,7,8

18 17

10

19

1,2 3 144,5,6,7,8

18 17 19

1,2 3 114,5,6,7,8,9

18 17

12 13 14

15,16

Description

1. Storage pouch

2. Tool kit

3. Air filter

4. Oil filler cap

5. Battery

6. Main fuse

7. Fuse box

8. Coolant reservoir

9. V-belt holder (PZ50MP)

10. Strap (PZ50MT)

11. Passenger grip warmer switch (PZ50MP)

12. Backrest (PZ50MP)

13. Rear carrier (PZ50MP)

14. Tail/brake light

15. Tow hitch [PZ50MP (RUS)]

16. Tow hitch bracket [PZ50MP (FIN)(SWE)]

17. Slide rail suspension

18. Drive track

19. Idle adjusting screw

13

Description

TIP

PZ50RT/PZ50XT/PZ50MT PZ50MP

1. Brake lever

2. Parking brake lever

3. Grip/thumb warmer adjusting switch

4. Headlight beam switch

5. Multi-function meter unit

6. Engine stop switch

 The snowmobile you have purchased may differ slightly from those shown in the figures of

this manual.

 Design and specifications are subjected to change without notice.

7. Throttle lever

8. Shroud latch (PZ50MP)

9. Main switch

10. Auxiliary DC jack (PZ50MP)

14

Control functions

TIP

WARNING

13

2

ESU10293

Main switch

The main switch controls the ignition and
lighting systems. The various positions are
described below.

1. Off

2. On

3. Start

Off

The ignition circuit is switched off.
The key can be removed only in this position.

On

The ignition circuit is switched on.

Start

The starting circuit is switched on.
The starter motor cranks the engine.

NOTICE: Release the switch immediately
after the engine starts.

The headlights and taillight come on after the
engine is started.

ESU10313

[ECS00022]

Throttle lever

Once the engine is running cleanly, squeez­ing the throttle lever will increase the engine
speed and cause engagement of the drive
train. Regulate the speed of the snowmobile
by varying the throttle position. Because the

throttle is spring-loaded, the snowmobile will
decelerate, and the engine will return to idle
when it is released.

1. Throttle lever

ESU10348

Throttle override system (T.O.R.S.)

EWS00042

If the T.O.R.S. is activated, make sure that
the cause of the malfunction has been
corrected and that the engine can be op­erated without a problem before restarting
the engine. Continuing to operate with a
malfunction could cause loss of control or
damage.

If the throttle valves or throttle cable malfunc­tions during operation, the T.O.R.S. will be
activated when the throttle lever is released.
The T.O.R.S. is designed to override the fuel
injection and limit the engine speed to less
than the clutch engagement speed if the
throttle valves fail to return to the idle position
when the throttle lever is released. (See page
86 for the clutch engagement speed.)

15

Control functions

TIP

2
3

4

5678

9

10

1

11

Idling Riding

Throttle
lever

Throttle
valve

T.O.R.S.

Released Squeezed Released

Closed Open Open

Engine

runs

properly.

Engine

runs

properly.

If the T.O.R.S. is activated, the warning light
and engine trouble warning indicator will
flash, and the two-digit code “84” will flash in
the meter display. If this occurs, have a
Yamaha dealer check the system as soon as
possible.

1. Warning light “ ”

2. Engine trouble warning indicator “ ”

3. Two-digit code “84”

ESU10399

Multi-function meter unit

The multi-function meter unit is equipped
with the following:

 a digital speedometer
 an odometer
 a tripmeter
 an engine speed meter
 warning indicators
 indicator lights
 a warning light
 a fuel meter
 a grip/thumb warmer level indicator

Malfunc-

T. O. R. S .

activated.

tion

will be

When the key is turned to the on position, the
warning light, the low coolant temperature in­dicator light, the knock control system indi­cator light, the drive indicator light, the
reverse indicator light, and all segments of
the meter display come on and go off.
The grip warmer level is initially displayed for
5 seconds, then the display switches to the
fuel meter.

1. Meter display

2. Drive indicator light “ ”

3. Reverse indicator light “ ”

4. Drive select switch

5. Knock control system indicator light “ ”

6. High beam indicator light “ ”

7. Low coolant temperature indicator
light “ ”

8. Warning light “ ”

9. “RESET” button

10. “SELECT” button

11. Warning indicators

16

Control functions

TIP

1

Odometer, tripmeter, and engine
speed meter modes

1. Odometer/tripmeter/engine speed meter

Odometer shows the total distance that the
vehicle has run.
Tripmeter shows the distance traveled since
it last reset.
Engine speed meter shows the approximate
speed of the engine in revolutions per minute
“r/min”.
Pushing the “SELECT” button switches the
display between the odometer mode “ODO”,
tripmeter mode “TRIP”, and engine speed
meter mode “r/min” in the following order:
ODO → TRIP → r/min → ODO
To reset the tripmeter, push the “RESET”
button for at least 1 second while the tripme­ter is displayed.

 Odometer resets and continues counting

when it reaches 99999 while riding.

 Tripmeter resets and continues counting

when it reaches 999.9 while riding.

 To switch the speedometer, odometer, and

tripmeter displays between kilometers and
miles, select the odometer mode “ODO”,
and then push the “SELECT” button for at
least 10 seconds while the snowmobile is
stopped.

 Use the engine speed meter only when

checking the snowmobile and performing
basic maintenance. The engine speed me-

ter should not be used while riding the
snowmobile since the reading will vary
from the actual engine speed.

ESU10412

High beam indicator light “ ”

The high beam indicator light comes on when
the high beams of the headlights are
switched on. (See page 22 for headlight
beam switch operation.)

1. High beam indicator light “ ”

ESU10474

Low coolant temperature indi­cator light “ ”

The low coolant temperature indicator light
comes on when the coolant temperature is
low and informs the rider that the snowmobile
should be warmed up. After the engine is
started, warm it up until the indicator light
goes off.
The snowmobile can be operated normally
after the indicator light goes off.

17

Control functions

TIP

NOTICE

TIP

1. Low coolant temperature indicator
light “ ”

Drive the snowmobile at low speeds when
the low coolant temperature indicator light is
on. If the engine speed is too high, maximum
engine speed is reduced to protect the en­gine.

ESU10502

Knock control system indicator
light “ ”

This snowmobile is equipped with a system
which detects engine knocking in order to
protect the engine from damage.
The knock control system indicator light
comes on if knocking is detected, then flash­es if the knocking increases.

ECS00032

 If the knock control system indicator

light comes on, the fuel tank may not
have been filled with the recommended
fuel. Reduce the engine speed to 6000
r/min or less. As soon as possible, stop
the engine, let it cool sufficiently, and
then drain the fuel and refuel with the
recommended fuel.

 If the knock control system indicator

light is flashing, have a Yamaha dealer
check the snowmobile as soon as pos­sible.

To help prevent knocking, use premium un­leaded gasoline only. (See page 28 for more
details.)

ESU10494

Drive indicator light “ ” and re­verse indicator light “ ”

These indicator lights show whether the
snowmobile is shifted into drive or reverse.
The drive indicator light comes on when the
transmission is in drive (forward).
The reverse indicator light comes on when
the transmission is in reverse.

1. Knock control system indicator light “ ”

After the knocking has stopped, the knock
control system indicator light goes off.

18

1. Drive select switch

2. Drive indicator light “ ”

3. Reverse indicator light “ ”

Control functions

TIP

1

The snowmobile can be shifted into drive or
reverse by pushing the drive select switch.
(See page 22 for drive select switch opera­tion.)

ESU10435

Fuel meter and grip/thumb warmer level indicator

The fuel meter and grip/thumb warmer level
indicator have eight segments which show
the amount of fuel remaining in the fuel tank,
the grip warmer level, or the thumb warmer
level.

1. Fuel meter and grip/thumb warmer level in­dicator

If the fuel level warning indicator and the
warning light come on, refuel as soon as pos­sible.

The snowmobile must be stopped on a level
surface to obtain an accurate fuel meter
reading, since the reading changes accord­ing to the movement and inclination of the
snowmobile.

Grip/thumb warmer level indicator

When the grip warmer side of the grip/thumb
warmer adjusting switch is pressed, the grip
warmer indicator comes on and the display
switches to the grip warmer level.
When the thumb warmer side of the
grip/thumb warmer adjusting switch is
pressed, the thumb warmer indicator comes
on and the display switches to the thumb
warmer level.
See “Grip/thumb warmer adjusting switch”
on page 23 for detailed information.

Fuel meter

The display segments of the fuel meter disap­pear towards “E” (Empty) as the fuel level de­creases. When only one segment is left near
“E”, the fuel level warning indicator and the
warning light come on.

1. Fuel level warning indicator “ ”

2. Warning light “ ”

1. Grip/thumb warmer adjusting switch

19

Control functions

TIP

1. Grip warmer indicator “ ”

2. Thumb warmer indicator “ ”

 The grip/thumb warmer level is displayed

for 5 seconds after releasing the
grip/thumb warmer adjusting switch, then
the display switches to the fuel meter.

 When the engine is started, the grip/thumb

warmer levels are set to the levels selected
when the engine was last stopped.

ESU10456

Fuel level warning indicator “ ”

The fuel level warning indicator and the warn­ing light come on when the fuel level is low.
(See page 19 for details.)
The fuel level warning indicator, the warning
light, and all segments of the fuel meter start
to flash when a malfunctioning sensor, dis­connected coupler, broken lead, or short cir­cuit is detected by the self-diagnosis device
of the snowmobile to warn the rider of any of
the above problems.
If the fuel level warning indicator, the warning
light, and all segments of the fuel meter flash,
have a Yamaha dealer inspect the snowmo­bile as soon as possible.

1. Fuel level warning indicator “ ”

2. Warning light “ ”

3. Fuel meter

ESU13992

Oil level/pressure warning
indicator “ ”

The oil level/pressure warning indicator has
two functions. The warning indicator comes
on when the engine oil level is low and when
the engine oil pressure is low. The functions
are explained in the following sections.

Oil level warning

The warning indicator and the warning light
come on when the engine oil level is low.

1. Oil level/pressure warning indicator “ ”

2. Warning light “ ”

If the warning indicator and the warning light
come on, place the snowmobile on a level
surface and allow it to idle for one minute.

20

Control functions

TIP

NOTICE

1

2

If the warning indicator and the warning light
go off, the engine oil level is sufficient, how­ever it is getting low. Add engine oil as soon
as possible.
If the warning indicator and the warning light
do not go off, check the engine oil level in the
oil tank (see page 60 for engine oil level
checking procedures), and add engine oil if
necessary.
If the warning indicator and the warning light
still remain on, have a Yamaha dealer check
the snowmobile.

Oil pressure warning

The warning indicator comes on and “OP­LO” (oil pressure low) appears in the odome­ter display if the engine oil pressure is low
when the engine is started. At the same time,
the engine speed is limited to less than the
clutch engagement speed until the warning
indicator goes off.
If the engine oil pressure remains low for one
minute, the engine stops. If this occurs, have
a Yamaha dealer check the snowmobile.

the oil circulates through the engine. The
snowmobile can be operated normally after
the warning indicator goes off.

ESU10514

Coolant temperature warning
indicator “ ”

If the engine overheats, the coolant tempera­ture warning indicator and the warning light
come on. When this occurs, stop the engine
immediately and allow the engine to cool
down, and then check the coolant level in the
coolant reservoir. (See page 64 for checking
procedures.)

1. Coolant temperature warning
indicator “ ”

2. Warning light “ ”

ECS00042

1. “OP-LO” (oil pressure low)

2. Oil level/pressure warning indicator “ ”

If there is no engine oil in the oil passages
when the engine is started, such as after the
engine oil is changed, the warning indicator
may come on and “OP-LO” may appear in
the odometer display for a few seconds until

Do not continue to operate the engine if it
is overheating.

ESU12687

Self-diagnosis device

This model is equipped with a self-diagnosis
device for various electrical circuits.
If a problem is detected in any of those cir­cuits, the warning light and the engine trouble
warning indicator flash, and an error code
flashes slowly in the meter display. Note the
error code, and then have a Yamaha dealer
inspect the snowmobile as soon as possible.

NOTICE: Do not continue to operate the

21

Control functions

NOTICE

3
2

engine longer than necessary if there is an
error code to avoid possible engine dam­age.

[ECS00821]

1. Warning light “ ”

2. Engine trouble warning indicator “ ”

3. Error code display

ESU10546

Drive select switch

The drive select switch is used to shift the
snowmobile into drive or reverse. After com­ing to a complete stop, press the drive select
switch.
The drive indicator light comes on when the
transmission is in drive (forward).
The reverse indicator light comes on when
the transmission is in reverse.

ECS00053

Do not use the drive select switch while
the snowmobile is moving. Otherwise, the
drive train could be damaged.

ESU10532

Engine stop switch “ ”

The engine stop switch is used to stop the
engine in an emergency. Simply push the
stop switch to stop the engine. To start the
engine, pull the stop switch and proceed with
starting the engine. (See page 39 for engine
starting procedures.)

1. Engine stop switch “ ”

During the first few rides, practice using the
stop switch so that you can react quickly in
an emergency.

ESU10662

Headlight beam switch “LIGHTS”

Push the headlight beam switch to change
the headlight to high beam “HI” or to low
beam “LO”.

22

1. Drive select switch

2. Drive indicator light “ ”

3. Reverse indicator light “ ”

TIP

NOTICE

1. Headlight beam switch “LIGHTS”

1

2. High beam “HI”

3. Low beam “LO”

ESU10677

Grip/thumb warmer adjusting switch

The grip/thumb warmer adjusting switch
controls the electrically heated handlebar
grips and throttle lever.

Control functions

See “Fuel meter and grip/thumb warmer level
indicator” on page 19 for detailed informa­tion.

ESU10697

Auxiliary DC jack (PZ50MP)

The auxiliary DC jack is located in the front
panel and can be used for accessories.

The auxiliary DC jack can only be used if the
engine is running.

To use the auxiliary DC jack

1. Start the engine.

2. Open the auxiliary DC jack cap, and then
insert the accessory power plug into the
jack.

1. Grip/thumb warmer adjusting switch

To raise the temperature

To raise the grip warmer temperature, press
the “ ” side of the switch. To raise the
thumb warmer temperature, press the “ ”
side of the switch.

To lower the temperature

Continue to press the switch until the temper­ature level returns to the minimum level, and
then raise the temperature to the desired lev­el.

1. Auxiliary DC jack cap

2. Auxiliary DC jack

3. After using the auxiliary DC jack, be sure
to remove the accessory power plug
from the jack and to close the auxiliary
DC jack cap.

ECS00123

 To avoid circuit overload and a possible

fuse blowing, do not use accessories re­quiring more than the maximum rated
capacity for the auxiliary DC jack. (See
page 79 for the specified fuse amper­age.)

23

Control functions

TIP

NOTICE

WARNING

NOTICE

 Do not use an automotive cigarette

lighter or other accessory with a plug
that gets hot because the jack can be
damaged.

Maximum rated capacity:

DC 12 V, 2.5 A (30 W)

ESU10552

Brake lever

The snowmobile is stopped by braking the
entire drive system.
Squeeze the brake lever towards the handle­bar grip to stop the snowmobile.

1. Parking brake lever

To release the parking brake, move the park­ing brake lever to the right.

1. Brake lever

When the brake lever is squeezed, the brake
light comes on.

ECS00061

Make sure that the brake lever end does
not project out over the handlebar end.
This will help prevent brake lever damage
when the snowmobile is placed on its side
for service.

ESU10582

Parking brake lever

When parking the snowmobile or starting the
engine, apply the parking brake by moving
the parking brake lever to the left.

24

ESU14212

Drive guard

EWS00403

 Coming in contact with the rotating V-

belt or clutch parts can cause severe in­jury or death. Never run the engine with
the drive guard removed.

 Make sure that the drive guard is in-

stalled securely before operating the
snowmobile to protect against severe
injury or death from a broken V-belt or
other part should it come off the snow­mobile while it is in operation.

ECS00931

 Never run the engine with the V-belt re-

moved. Clutch components can be
damaged.

 Be careful not to scratch the windshield

NOTICE

when removing or installing the drive
guard.

The drive guard is designed to protect the V­belt clutch and V-belt in case parts break or
come loose.
The drive guard is located behind the left side
cover. (See page 52 for removal procedures.)

Control functions

To remove the drive guard

1. Pull out the drive guard locking pin from
the drive guard upper holder.

1. Drive guard locking pin

2. Drive guard

2. Slightly raise the front of the drive guard,
and then lift up the drive guard to remove
it.

To install the drive guard

1. Fit the slots in the rear of the drive guard
onto the projections on the drive guard
rear holder.

1. Drive guard

2. Align the slots in the top of the drive
guard with the projections on the drive
guard upper holder, and then insert the
drive guard locking pin into the holder.

ESU10771

V-belt holder (PZ50MP)

Keep a spare V-belt for emergency use by
placing it into the V-belt holder provided.

1. V-belt holder

ECS00191

Make sure that the V-belt is installed se­curely in the holder.

ESU10682

Passenger grip warmer switch (PZ50MP)

The passenger grip warmer switch controls
the electrically heated passenger grips.

25

Control functions

WARNING

1. Passenger grip warmer switch

2. Off

3. “HI” (high)

4. “LO” (low)

ESU10803

Backrest (PZ50MP)

The backrest is adjustable.

To adjust the backrest angle

1. Open the backrest zipper and loosen the
backrest bolts.

3. Tighten the bolts and close the zipper.

Backrest bolt tightening torque:

23 Nm (2.3 m·kgf, 17 ft·lbf)

EWS00132

Do not sit on the backrest. Otherwise, you
could lose your balance, fall, and be in­jured.

ESU12994

Storage pouch

The storage pouch is located behind the front
bumper. Use the storage pouch to store the
tool kit, spare parts, such as the V-belt
(PZ50RT / PZ50XT / PZ50MT), or other small
items.

1. Backrest bolt

2. Adjust the backrest angle to the desired
position.

26

1. Storage pouch

To remove the storage pouch

Unfasten the storage pouch upper and lower
buckles, and then pull the storage pouch off
as shown.

TIP

TIP

1. Storage pouch buckle

To install the storage pouch

1. Put the storage pouch in the original po­sition.

2. Fasten the storage pouch upper buckles.

3. Pass the storage pouch lower strap be­tween the bracket and the frame, and
then fasten the buckle to secure the
pouch.

Control functions

Storing the spare V-belt (PZ50RT /
PZ50XT / PZ50MT)

Keep a spare V-belt for emergency use by
storing it in the storage pouch.

When storing a spare V-belt in the storage
pouch, be sure to secure it with the hook and
loop fastener.

1. Hook and loop fastener

ESU10841

Rear carrier (PZ50MP)

The rear carrier is located at the rear of the
snowmobile.

1. Storage pouch lower strap

2. Storage pouch

3. Bracket fastener

 Be sure to route the storage pouch lower

strap above the bracket fasteners.

 When installing the storage pouch, make

sure that the storage pouch buckles are se­curely fastened.

1. Rear carrier

Maximum load limit:

20 kg (44 lbs)

27

Control functions

WARNING

NOTICE

TIP

WARNING

1

EWS00141

Do not use the rear carrier to lift the snow­mobile. The snowmobile could fall, which
could result in severe injury or death.

ESU13203

Tow hitch [PZ50MP (RUS)] and tow hitch bracket [PZ50MP (FIN)(SWE)]

ECS00242

To prevent premature wear of the V-belt,
avoid traveling under 10 km/h (6 mi/h)
when towing for long distances or long pe­riods of time.

Tow hitch [PZ50MP (RUS)]

Use the tow hitch within the specified weight
limits.

1. Tow hitch bracket

A tow hitch is available at a Yamaha dealer.

Tow weight limit:

120 kgf (264 lbf)

Vertical weight limit:

15 kgf (33 lbf)

ESU10638

Fuel

EWS00072

1. Tow hitch

Tow weight limit:

120 kgf (264 lbf)

Vertical weight limit:

15 kgf (33 lbf)

Tow hitch bracket [PZ50MP
(FIN)(SWE)]

This snowmobile is equipped with a tow hitch
bracket that is used to install a tow hitch.
Use the tow hitch bracket within the specified
weight limits.

28

Gasoline and gasoline vapors are ex­tremely flammable. To avoid fires and ex­plosions and to reduce the risk of injury
when refueling, follow these instructions.

Make sure there is sufficient gasoline in the
tank.

1. Before refueling, turn off the engine and
be sure that nobody is on the snowmo­bile. Never refuel while smoking, or while
in the vicinity of sparks, open flames, or
other sources of ignition such as the pilot
lights of water heaters and clothes dry­ers.

2. Do not overfill the fuel tank. Stop filling
when the fuel reaches the bottom of the
filler tube. Because fuel expands when it
heats up, heat from the engine or the sun
can cause fuel to spill out of the fuel tank.

WARNING

NOTICE

1. Filler tube

2. Maximum fuel level

3. Wipe up any spilled fuel immediately.

4. Be sure the fuel tank cap is closed se­curely by turning it clockwise.

EWS00681

Gasoline is poisonous and can cause inju­ry or death. Handle gasoline with care.
Never siphon gasoline by mouth. If you
should swallow some gasoline or inhale a
lot of gasoline vapor, or get some gasoline

Control functions

in your eyes, see your doctor immediately.
If gasoline spills on your skin, wash with
soap and water. If gasoline spills on your
clothing, change your clothes.

Recommended fuel:

Min 95 RON UNLEADED GASOLINE
ONLY (PZ50MP_RUS, PZ50MT_RUS)
Min 98 RON UNLEADED GASOLINE
ONLY (PZ50MP_FIN/SWE,
PZ50MT_FIN/SWE, PZ50RT, PZ50XT)

Fuel tank capacity:

26.7 L (7.05 US gal, 5.87 Imp.gal)
(PZ50MT, PZ50RT, PZ50XT)

36.0 L (9.50 US gal, 7.92 Imp.gal)
(PZ50MP)

Your Yamaha engine has been designed to
use unleaded gasoline with a research oc­tane number of 98 or higher. (For Russia, pre­mium unleaded gasoline with a pump octane
number [(R+M)/2] of 91 or higher, or a re­search octane number of 95 or higher.)
If the recommended fuel is not used, the en­gine may not perform as it should.

ECS00095

 Make sure that snow or ice does not en-

ter the fuel tank when refueling.

 The fuel tank should be filled with the

recommended gasoline. The use of oth­er gasoline will cause severe damage to
internal engine parts, such as the valves
and piston rings, as well as to the ex­haust system.

ESU10875

Suspension

The suspension can be adjusted to suit rider
preference. Softer settings, for example, may
provide greater rider comfort, while harder
settings may allow more precise handling
and control over certain types of terrain or
riding conditions.

29

Control functions

WARNING

WARNING

TIP

(a)

(b)

1

3

2

If you are not familiar with suspension adjust­ments, have a Yamaha dealer make these
adjustments.

EWS00152

Read and understand the following infor­mation before handling shock absorbers
that contain highly pressurized nitrogen
gas.
 Do not tamper with or attempt to open

the cylinder assemblies.

 Do not subject the shock absorbers to

an open flame or other high heat source.
This may cause the unit to explode due
to excessive gas pressure.

 Do not deform or damage the cylinders

in any way. Cylinder damage will result
in poor damping performance.

 Do not dispose of a damaged or worn

out shock absorber yourself. Take the
shock absorber to a Yamaha dealer for
any service.

ESU10895

Adjusting the spring preload of the
front shock absorbers (PZ50XT /
PZ50MT / PZ50MP)

EWS00721

The spring preload of the left and right
shock absorbers must be adjusted to the
same setting. Uneven settings can cause
poor handling and loss of stability.

The spring preload can be adjusted by turn­ing the adjusting nuts.
Adjust the spring preload as follows.

1. Loosen the locknut.

2. To increase the spring preload and
thereby harden the suspension, turn the
adjusting nut in direction (a). To decrease

the spring preload and thereby soften
the suspension, turn the adjusting nut in
direction (b).

1. Locknut

2. Distance A

3. Spring preload adjusting nut

The spring preload setting is determined by
measuring distance A, shown in the illustra­tion. The longer distance A is, the higher the
spring preload; the shorter distance A is, the
lower the spring preload.

Spring preload setting*:

Minimum (soft):

113.5 mm (4.47 in) (PZ50XT)

137.5 mm (5.41 in) (PZ50MT,
PZ50MP)

Standard:

138.5 mm (5.45 in)

Maximum (hard):

148.5 mm (5.85 in)

* Distance A changes 1.5 mm (0.06 in)

with each full turn of the adjusting
nut.

3. Tighten the locknut to the specified
torque. NOTICE: Always tighten the

locknut against the adjusting nut, and
then tighten the locknut to the speci­fied torque.

[ECS00861]

30

Control functions

WARNING

WARNING

NOTICE

Tightening torque:

Locknut:

30 Nm (3.0 m·kgf, 22 ft·lbf)
(PZ50XT)
42 Nm (4.2 m·kgf, 30 ft·lbf)
(PZ50MT, PZ50MP)

ESU12558

Adjusting the air pressure of the front
shock absorbers (PZ50RT)

EWS00731

The air pressure of the left and right shock
absorbers must be adjusted to the same
setting. Uneven settings can cause poor
handling and loss of stability.

The air pressure of the shock absorbers can
be adjusted using the shock absorber pump
included with your snowmobile.

1. Shock absorber pump

To adjust the air pressure

EWS00622

ECS00711

Make sure that there is no load on the
shock absorbers and that they are fully ex­tended before making any air pressure ad­justments.

1. Place the snowmobile on a level surface
and apply the parking brake.

2. Lift the front of the snowmobile onto a
suitable stand to raise the skis off the
ground.

3. Remove the air valve cap from the shock
absorber.

1. Air valve cap

4. Install the hose connector of the shock
absorber pump onto the air valve of the
shock absorber and tighten it approxi­mately six turns until the pressure regis­ters on the pump gauge. NOTICE: Do

not overtighten the connector onto
the air valve as this will damage the
connector seal.

[ECS00722]

Support the snowmobile securely on a
suitable stand before adjusting the shock
absorbers. Otherwise, the snowmobile
could fall and cause injury.

31

Control functions

TIP

TIP

TIP

TIP

1. Hose connector 1. Bleed valve button

Air pressure range:

If the shock absorber has no air pressure, the
gauge reading will be zero.

5. To increase the air pressure, operate the
pump a few times. The pressure should
increase slowly. If the pressure increases
rapidly, check to make sure that the
pump is properly connected and tight­ened onto the air valve. To decrease the
air pressure, push the black bleed valve
button. NOTICE: Do not exceed 1034

kPa (10.3 kgf/cm², 150 psi).

[ECS00734]

345–1034 kPa (3.5–10.3 kgf/cm²,
50–150 psi)

Recommended air pressure:

483 kPa (4.8 kgf/cm², 70 psi)

To allow pressure to escape from the pump
and the shock absorber, push the button
halfway down and hold it. To allow only a
small amount of pressure to escape, push the
button all the way down and quickly release
it.

6. Remove the hose connector from the air
valve.

When removing the connector, the sound of
air escaping may be heard, but this is from
the pump hose, not the shock absorber.

7. Install the air valve cap.

If the front shock absorber bottoms too easily
or rolls too much during cornering, increase
the air pressure by 34 kPa (0.3 kgf/cm², 5 psi).
If the shock absorber is too firm and you want
a more compliant ride, decrease the air pres­sure by 34 kPa (0.3 kgf/cm², 5 psi).

32

Control functions

TIP

WARNING

(a)

(b)

2

1

3

ESU13137

Adjusting the spring preload of the
center shock absorber and the rear
torsion springs

The spring preload can be adjusted by turn­ing the adjusting nut on the center shock ab­sorber and the adjusters on the rear torsion
springs. Adjust the spring preload as follows.

Center shock absorber

1. Loosen the locknut.

2. To increase the spring preload and
thereby harden the suspension, turn the
adjusting nut in direction (a). To decrease
the spring preload and thereby soften
the suspension, turn the adjusting nut in
direction (b).

1. Spring preload adjusting nut

2. Distance A

3. Locknut

The spring preload setting is determined by
measuring distance A, shown in the illustra­tion. The longer distance A is, the higher the
spring preload; the shorter distance A is, the
lower the spring preload.

Spring preload setting*:

Minimum (soft):

114.5 mm (4.51 in) (PZ50RT)

110.5 mm (4.35 in) (PZ50XT)

112.5 mm (4.43 in) (PZ50MT)

111.5 mm (4.39 in) (PZ50MP)

Standard:

115.5 mm (4.55 in) (PZ50RT)

120.5 mm (4.74 in) (PZ50XT)

113.5 mm (4.47 in) (PZ50MT)

112.5 mm (4.43 in) (PZ50MP)

Maximum (hard):

125.5 mm (4.94 in) (PZ50RT)

126.5 mm (4.98 in) (PZ50XT)

123.5 mm (4.86 in) (PZ50MT)

122.5 mm (4.82 in) (PZ50MP)

* Distance A changes 1.5 mm (0.06 in)

with each full turn of the adjusting
nut.

3. Tighten the locknut to the specified
torque. NOTICE: Always tighten the

locknut against the adjusting nut, and
then tighten the locknut to the speci­fied torque.

Tightening torque:

Locknut:

30 Nm (3.0 m·kgf, 22 ft·lbf)
(PZ50XT)
42 Nm (4.2 m·kgf, 30 ft·lbf)
(PZ50RT, PZ50MT, PZ50MP)

Rear torsion springs

EWS00751

The left and right spring preloads must be
adjusted to the same setting. Uneven set­tings can cause poor handling and loss of
stability.

[ECS00861]

To increase the spring preload and thereby
harden the suspension, turn the adjuster in
direction (a). To decrease the spring preload
and thereby soften the suspension, turn the
adjuster in direction (b).

33

Control functions

WARNING

TIP

(a)

(b)

1

2

3

4

1. Spring preload adjuster

Spring preload setting:

Minimum (soft):

S

Standard:

M

Maximum (hard):

H

 Be sure to make this adjustment when

there is no load (rider or cargo) on the
snowmobile.

 Use the special tools included in the own-

er’s tool kit to make the adjustment.

1. Insert the special tools into the 2-up ad­justing block as shown.

ESU13095

Adjusting the 2-up adjusting blocks
(PZ50MP)

EWS00761

Make sure that the 2-up adjusting blocks
are installed in the same position on both
sides of the snowmobile, otherwise poor
handling and loss of stability may result.

The spring force can be adjusted by chang­ing the position of the 2-up adjusting blocks.

1. 2-up adjusting block

1. 2-up position (rider and passenger)

2. Solo rider position

3. Special tool

4. Lock pin

2. Pull the lock pin and turn the special
tools to change the block position.

3. Release the lock pin.

4. Remove the special tools from the 2-up
adjusting block.

ESU14790

Adjusting the compression damping
force of the rear shock absorber
(PZ50RT)

The compression damping force can be ad­justed by turning the adjusting screw.
To increase the compression damping force,
turn the adjusting screw in direction (a). To
decrease the compression damping force,
turn the adjusting screw in direction (b).

NOTICE: Do not continue to turn the ad­justing screw in direction (a) after it stops.
The shock absorber could be damaged
and damping force adjustments will not be

34

able to be made. Do not turn the adjusting

WARNING

(b) (a)

1

screw in direction (b) more than 16 click(s).
Even if the adjusting screw is continually
turned after 16 click(s), there will be no
change in the damping force. Be sure to
stop the adjusting screw at a position
where there is a click.

1. Compression damping force adjusting
screw

[ECS01080]

Compression damping force setting:

Minimum (soft):

16 click(s) in direction (b)*

Standard:

12 click(s) in direction (b)*

Maximum (hard):

1 click(s) in direction (b)*

* With the adjusting screw fully turned

in direction (a)

ESU11036

Adjusting the control rods (PZ50MP)

EWS00771

Control functions

1. Locknut

2. Control rod adjusting nut

2. To increase weight transfer, turn the ad­justing nut in direction (a), and to de­crease weight transfer, turn it in direction
(b). WARNING! Never adjust the con-

trol rods beyond the maximum set­ting, indicated by red paint; otherwise,
they could be damaged, which could
lead to an accident or injury.

[EWS00174]

The left and right adjusting nuts must be
set to the same position. Uneven settings
can cause poor handling and loss of sta­bility.

The weight transfer can be adjusted by turn­ing the adjusting nuts on the control rods.

1. Loosen the locknut while holding the ad­justing nut.

35

Control functions

1

5

2

3

4

1. Locknut

2. Control rod adjusting nut

3. Standard position

4. Adjustable range

5. Red paint area

3. Tighten the locknut while holding the ad­justing nut in place. NOTICE: Always

tighten the locknut against the adjust­ing nut, and then tighten the locknut to
the specified torque.

Locknut tightening torque:

25 Nm (2.5 m·kgf, 18 ft·lbf)

[ECS00861]

36

Pre-operation checks

WARNING

ESU11072

Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condi­tion. Always follow the inspection and maintenance procedures and schedules described in
the Owner’s Manual.

EWS00192

Failure to inspect or maintain the vehicle properly increases the possibility of an acci­dent or equipment damage. Do not operate the vehicle if you find any problem. If a prob­lem cannot be corrected by the procedures provided in this manual, have the vehicle
inspected by a Yamaha dealer.

ESU11082

Pre-operation check list

ITEM CHECKS PAGE

Fuel

Engine oil

Coolant

V-belt

Drive guard

Brake

Air filter

Tool kit and recommended
equipment

Shroud and covers

Skis and ski runners

• Check fuel level.

• Refuel if necessary.

• Check fuel line for leakage.

• Check oil level in engine.

• If necessary, add recommended oil to specified
level.

• Check vehicle for oil leakage.

• Check coolant level.

• Add if necessary.

• Check for wear and damage.

• Replace if necessary.

• Make sure the drive guard is installed securely.

• Check the drive guard mounts for damage.

• Check operation.

• If soft or spongy, have Yamaha dealer bleed hy­draulic system.

• Check brake pads for wear.

• Replace if necessary.

• Check fluid level in master cylinder.

• If necessary, add recommended brake fluid to
specified level.

• Check hydraulic system for leakage.

• Check that there is no snow under the air filter ele­ment.

• If necessary, brush off the snow.

• Check for proper placement. 52, 52

• Make sure that the shroud and covers are securely
fastened.

• Check for wear and damage.

• If necessary, have Yamaha dealer replace skis or
ski runners.

28

60

64

65

24

69

59

52

71

37

Pre-operation checks

ITEM CHECKS PAGE

Front shock absorbers
(PZ50RT)

Drive track

Slide runners

Steering • Check for excessive free play. 73

Strap (PZ50MT)

Lights, signals and switch-es• Check operation.

Throttle lever

Throttle override system
(T.O.R.S.)

• Check air pressure.

• Adjust if necessary.

• Check the deflection.

• Adjust if necessary.

• Check for wear and damage.

• If necessary, have a Yamaha dealer replace track.

• Check for wear and damage.

• If necessary, have Yamaha dealer replace slide
runners.

•Check for damage.

• Replace if necessary.

• Correct if necessary.

• Make sure that operation is smooth and spring
back to its original position when released.

• Check the T.O.R.S. for proper operation.

• If system is not functioning properly, have Yamaha
dealer check vehicle.

22, 22, 77, 78

31

73

73

45

15

58

38

ESU13503

WARNING

TIP

1
2

Read the Owner’s Manual carefully to be­come familiar with all controls. If there is a
control or function you do not understand,
ask your Yamaha dealer.

EWS00204

Failure to familiarize yourself with the con­trols can lead to loss of control, which
could cause an accident or injury.

ESU13213

This model is equipped with:
 an engine oil pressure switch to stop the

engine in case an engine oil pressure drop
is detected. To start the engine after this
system has stopped the engine, be sure to
place the snowmobile on a level surface,
and then turn the key in the main switch to
the off position, and then to the on position.
Failing to do so will prevent the engine from
starting even though the engine will crank
when turning the key to the start position. If
the engine does not start or if it stops
again, ask a Yamaha dealer to inspect the
snowmobile.

 an engine overheating prevention system,

which prevents overheating when the en­gine is idling. When the engine has been
idling for 3 minutes or longer and the cool­ant temperature has risen above 100 °C
(212 °F), the engine automatically stops to
prevent overheating. The engine can be
started after it stops.

ESU11304

Starting the engine

1. Apply the parking brake.

Operation

2. Be sure the engine stop switch is in the
run position. The starter motor cannot be
operated when the engine stop switch is
in the off position.

1. Run position

2. Off position

3. Turn the main switch to the start position
and release it when the engine starts.

NOTICE: Release the switch immedi­ately after the engine starts. If the en­gine fails to start, release the switch,
wait a few seconds, then try again.
Each attempt should be as short as
possible to preserve the battery. Do
not crank the engine more than 10
seconds on any one attempt.

[ECS00332]

39

Operation

NOTICE

WARNING

1

1. Start

4. Warm up the engine until it runs smooth­ly.

5. Be sure the low coolant temperature in­dicator light has gone out before opera­tion. (See page 17 for detailed
information about the indicator light.)

ESU11321

Break-in

There is never a more important period in the
life of your engine than the period between 0
and 500 km (300 mi). For this reason, you
should read the following material carefully.
Since the engine is brand new, do not put an
excessive load on it for the first 500 km (300
mi). The various parts in the engine wear and
polish themselves to the correct operating
clearances. During this period, prolonged
full-throttle operation or any condition that
might result in engine overheating must be
avoided.

Operating your snowmobile for the
first time

Start the engine and let it idle for 15 minutes.

0–160 km (0–100 mi)

Avoid prolonged operation above 8000 r/min.

160–500 km (100–300 mi)

Avoid prolonged operation above 10000
r/min.

500 km (300 mi) and beyond

The snowmobile can now be operated nor­mally.

ECS00341

 After 800 km (500 mi) of operation, the

engine oil must be changed and the oil
filter cartridge replaced.

 If any engine trouble should occur dur-

ing the engine break-in period, immedi­ately have a Yamaha dealer check the
snowmobile.

ESU12626

Riding your snowmobile

Getting to know your snowmobile

EWS00212

To avoid severe injury or death:
 Keep both hands on the handlebar dur-

ing operation.

 Never put your feet outside the running

boards.

 Avoid higher speeds or more difficult

maneuvers until you have become thor­oughly familiar with your snowmobile
and all of its controls.

A snowmobile is a rider active vehicle, and
your riding position and your balance are the
two basic factors of maneuvering your snow­mobile.
Riding your snowmobile requires skills ac­quired through practice over a period of time.
Take the time to learn the basic techniques
well before attempting more difficult maneu­vers.
Riding your new snowmobile can be a very
enjoyable activity, providing you with hours of
pleasure. However, it is essential to familiar­ize yourself with the operation of the snow­mobile to achieve the skill necessary to enjoy
riding safely. Before operating the snowmo­bile, read this Owner’s Manual completely
and understand the operation of the controls.

40

Operation

WARNING

Pay particular attention to the safety informa­tion on page 10.
Please read all warning and notice labels on
your snowmobile.

Learning to ride your snowmobile

Before you ride, always perform the pre-op­eration checks listed on page 37. The short
time spent checking the condition of the
snowmobile will be rewarded with added
safety and a more reliable snowmobile. Al­ways wear the proper clothing for both
warmth and to help protect you from injury if
an accident occurs.
Become familiar with operating your snow­mobile at low speeds, even if you are an ex­perienced rider. Do not attempt to operate at
maximum performance until you are totally
familiar with the snowmobile’s handling and
performance characteristics.
The beginning operator should select a large
flat area to become familiar with the snowmo­bile. Make sure that this area is free of obsta­cles and other traffic. You should practice
control of the throttle and brake, and master
turning techniques in this area before trying
more difficult terrain.
Set the parking brake and follow the instruc­tions on page 39 to start the engine. Once the
engine has warmed up, you are ready to be­gin riding your snowmobile.

Braking

EWS00221

 Many surfaces such as ice and hard-

packed snow require much longer stop­ping distances. Be alert, plan ahead, and
begin decelerating early.

 Improper use of the brake can cause the

drive track to lose traction, reduce con­trol, and increase the possibility of an
accident.

When slowing down or stopping, release the
throttle and apply the brake gently—not sud­denly.

Turning

For most snow surfaces, “body English” is
the key to turning.
As you approach a curve, slow down and be­gin to turn the handlebar in the desired direc­tion. As you do so, put your weight on the
running board to the inside of the turn and
lean your upper body into the turn.

To start out and accelerate

1. With the engine idling, release the park­ing brake.

2. Apply the throttle slowly and smoothly.
The V-belt clutch will engage and you will
start to accelerate. WARNING! Do not

allow anyone to stand behind the
snowmobile when starting the engine.
A broken track, track fittings, or debris
thrown by the track could be danger­ous to bystanders.

[EWS00691]

This procedure should be practiced at low
speeds many times, in a large flat area with
no obstacles. Once you have learned this
technique, you should be able to perform it at
higher speeds or in tighter curves. Lean more
as the turn gets sharper or is made at higher
speeds.

41

Operation

WARNING

WARNING

Improper riding techniques such as abrupt
throttle changes, excessive braking, incor­rect body movements, or too much speed for
the sharpness of the turn may cause the
snowmobile to tip.
If your snowmobile begins to tip while turn­ing, lean more into the turn to regain balance.
If necessary, gradually let off on the throttle or
steer to the outside of the turn.

Remember:

Avoid higher speeds until you are thoroughly
familiar with the operation of your snowmo­bile.

Riding uphill

EWS00232

Operation on slopes can lead to loss of
control if proper techniques are not used.
Follow these instructions to reduce your
risk of an accident. Do not try steeper or
more difficult inclines until you have devel­oped your skill on gentle slopes.

You should practice first on gentle slopes. Try
more difficult climbs only after you have de­veloped your skill. As you approach a hill, ac­celerate before you start the climb, and then
reduce the throttle to prevent track slippage.
It is also impor tant to keep your weight on the
uphill side at all times. On climbs straight up
the hill, this can be accomplished by leaning
forward and, on steeper inclines, standing on
the running boards and leaning forward over
the handlebar. (Also see “Traversing a
slope”.)

Slow down as you reach the crest of the hill,
and be prepared to react to obstacles, sharp
drops, or other vehicles or people which may
be on the other side. If you are unable to con­tinue up a hill, do not spin the track. Stop the
engine and set the parking brake. Then pull
the rear of the snowmobile around to point
the snowmobile back down the hill. When the
snowmobile is pointed downhill, mount your
snowmobile from the uphill side. Restart the
engine, release the parking brake, and de­scend the hill.

Riding downhill

EWS00241

Use extra caution when applying the brake
during a descent. Excessive braking will
cause the drive track to lock, causing a
loss of control.

When riding downhill, keep speed to a mini­mum. It is important to apply just enough
throttle to keep the clutch engaged while de­scending the hill. This will allow you to use
engine compression to help slow the snow­mobile, and to keep the snowmobile from
rolling freely down the hill. Also apply the
brake frequently, with light pressure.

42

Traversing a slope

WARNING

WARNING

EWS00252

Driving across the face of a slope (“side­hilling”) can lead to overturn or loss of
control if proper techniques are not used.
Follow these instructions to reduce your
risk of an accident. Do not try steeper or
more difficult inclines until you have devel­oped your skill on gentle slopes.

Traversing a slope requires you to properly
position your weight to maintain proper bal­ance. As you travel across the slope, lean
your body to position your weight towards
the uphill side. A recommended riding posi­tion is to kneel with the knee of your downhill
leg on the seat and the foot of your uphill leg
on the running board. This position will make
it easier for you to shift your body weight as
needed.

Operation

Snow and ice are slippery, so be prepared for
the possibility that your snowmobile could
begin to slip sideways on the slope. If this
happens, steer in the direction of the slide if
there are no obstacles in your path. As you
regain proper balance, gradually steer again
in the direction you wish to travel.
If your snowmobile starts to tip, steer down
the hill to regain balance. WARNING! If you

are unable to maintain correct balance,
and your snowmobile is going to tip over,
dismount your snowmobile immediately
on the uphill side to avoid being hit or
caught under the snowmobile as it tips
over.

[EWS00262]

Ice or icy surface

EWS00271

When you have to operate on ice or icy
surfaces, drive slowly and cautiously.
Avoid accelerating, turning, and braking
rapidly. Steering is minimal and uncon­trolled spins are an ever-present danger.

Operating on ice or icy surfaces can be very
dangerous. Traction for turning, stopping,
and starting is much less than that on snow.

Hard-packed snow

It can be more difficult to negotiate on hard­packed snow as both the skis and drive track
do not have as much traction as when the
snowmobile is operated on fresh snow. Avoid
rapid acceleration, turning, and braking.

Operation on surfaces other than
snow or ice

Operation of your snowmobile on surfaces
other than snow or ice should be avoided.
Operation under such conditions will damage
or result in rapid wear of the ski runners, drive

43

Operation

WARNING

NOTICE

track, slide runners, and drive sprockets. Op­eration of the snowmobile on the following
surfaces should be avoided at all times:

 Dirt
 Sand
 Rocks
 Grass
 Bare pavement

Other surfaces that should be avoided for the
sake of drive track and slide runner life are:

 Glare ice surfaces
 Snow mixed with a lot of dirt and sand

All of the above surfaces have one thing in
common in regard to drive track and slide
runners: little or no lubricating ability. Drive
track and all slide rail systems require lubrica­tion (snow or water) between the slide run­ners and the slide metal. In the absence of
lubrication, the slide runners will rapidly wear
and in severe cases, literally melt away, and
the drive track will be subject to damage or
failure.
Also traction aids such as studs, cleats, etc.,
may cause further track damage or failure.

EWS00281

Drive track damage or failure could result
in loss of braking ability and snowmobile
control, which could cause an accident.
 Always check the drive track for dam-

age or maladjustment before operating
the snowmobile.

 Do not operate the snowmobile if you

find damage to the drive track.

ECS00351

ESU11351

Maximizing drive track life

Recommendations
Track tension

During initial break-in, the new drive track will
tend to stretch quickly as the track settles. Be
sure to correct the track tension and align­ment frequently. (See page 73 for adjustment
procedures.) A loose track can slip (ratchet),
derail or catch on suspension parts causing
severe damage. Do not overtighten the drive
track, otherwise it may increase the friction
between the track and the slide runners, re­sulting in the rapid wear of both components.
Also, this may put an excessive load on the
suspension components, resulting in compo­nent failure.

Marginal snow

The drive track and the slide runners are lu­bricated and cooled by snow and water. To
prevent the drive track and slide runners from
overheating, avoid sustained high-speed us­age in areas such as icy trails, frozen lakes
and rivers that have minimal snow coverage.
An overheated track will be weakened inter­nally, which may cause failure or damage.

Off-trail riding

Avoid off-trail riding until there is sufficient
snow coverage. It generally takes several feet
of snow to provide a good overall base to
properly cover debris, such as rocks, logs,
etc. If snow coverage is not sufficient, stay on
trails to avoid impact damage to the drive
track.

Ride on fresh snow frequently. Operating
on ice or hard-packed snow will rapidly
wear the slide runners.

44

Studded track

In general, track life will be shortened when
studs are installed. Drilling stud holes into the
drive track will cut the internal fibers, which
weakens the track. Avoid spinning the drive
track. Studs may catch on an object and pull
out of the track, leaving tears and damage

Operation

WARNING

WARNING

WARNING

TIP

around the already weakened area. To mini­mize possible damage, consult your stud
manufacturer for installation and stud pattern
recommendations.

Yamaha does not recommend track stud­ding.

ESU11361

Strap (PZ50MT)

The strap should be used only by experi­enced operators to assist them when tra­verse (side-hill) riding.

1. Strap

EWS00291

Improper use of the strap on the handle­bar can result in severe injury or death.
 Use the strap only as an operator grip

point when needed to shift weight uphill
to maintain balance during traverse
(side-hill) riding. Only experienced oper­ators should traverse slopes steep
enough to require strap use.

 Keep the right hand on the right handle-

bar grip for steering, and grip the strap
with the left hand to shift weight uphill
for balance during traverse riding.

 Ride cautiously while using the strap. Do

not accelerate or decelerate abruptly
while holding onto the strap.

 Do not use the strap to lift the snowmo-

bile.

 Do not use the strap as a mounting point

for cargo or accessories.

ESU1140A

Driving

EWS00301

Be sure to read the “SAFETY INFORMA­TION” section on page 10 and the “Riding
your snowmobile” section on page 40
carefully before operating the snowmo­bile.

EWS00323

 Make sure that the throttle lever is fully

released and the snowmobile is at a full
stop before shifting.

 Be sure to press the drive select switch

only while the engine is idling.

 Make sure that the reverse indicator

light comes on and remains on, and that
the area behind the snowmobile is clear
before reversing. Watch behind.

 Reduce speed and avoid sharp turning

when operating the snowmobile in re­verse.

Make sure that the engine is warmed up
enough before riding.

1. While the engine is idling, select the de­sired operating position by pressing the
drive select switch. Make sure that the
drive indicator light or the reverse indica­tor light flashes, and then remains on.
Once the indicator light for the selected
position remains on, the snowmobile can
be driven. NOTICE: Do not shift from

drive to reverse or from reverse to
drive while the snowmobile is moving,
as the drive train could be damaged.

[ECS00852]

45

Operation

TIP

TIP

1

1. Drive select switch

2. Drive indicator light “ ”

3. Reverse indicator light “ ”

If the indicator light keeps flashing, the snow­mobile is not correctly shifted into drive or re­verse. If this occurs, applying a little throttle
while applying the brake will help the trans­mission to engage.

The reverse buzzer beeps while the transmis­sion is in reverse.

5. Squeeze the brake lever to stop the
snowmobile.

6. Apply the parking brake by moving the
parking brake lever to the left.

ESU11412

Stopping the engine

 Turn the main switch to the off position to

stop the engine.

1. Off

 Push down the engine stop switch to stop

the engine in an emergency.

2. While squeezing the brake lever, release
the parking brake by moving the parking
brake lever to the right, and then release
the brake lever.

3. Squeeze the throttle lever slowly to start
out.

4. Turn the handlebar in the desired direc­tion.

46

ESU11431

Transporting

When transporting your snowmobile on a
trailer or in a truck, observe the following rec­ommendations to help protect it from dam­age:
 If transporting the snowmobile in an open

trailer or truck, put a tight fitting cover on
the snowmobile. A cover specifically de­signed for your snowmobile is best. This
will help keep foreign objects out of the

cooling vents, and also help protect the
snowmobile against damage from debris
on the road.

 If transporting the snowmobile in an open

trailer or truck in areas where road salt is
used, coat metal suspension surfaces
lightly with oil or another protectant. This
will help protect against corrosion. Be sure
to clean the snowmobile when you get to
your destination to remove any corrosive
salts.

Operation

47

Periodic maintenance and adjustment

WARNING

WARNING

WARNING

ESU11453

Periodic inspection, adjustment, and lubrication will keep your snowmobile in the safest and
most efficient condition possible. Safety is an obligation of the vehicle owner/operator. The
most important points of vehicle inspection, adjustment, and lubrication are explained on the
following pages.

EWS00342

Failure to properly maintain the snowmobile or performing maintenance activities incor­rectly may increase your risk of injury or death during service or while using the snow­mobile. If you are not familiar with snowmobile service, have a Yamaha dealer perform
service.

EWS00701

Turn off the engine when performing maintenance unless otherwise specified.
 A running engine has moving parts that can catch on body parts or clothing, and elec-

trical parts that can cause shocks or fires.

 Running the engine while servicing can lead to eye injury, burns, fire, or carbon mon-

oxide poisoning–possibly leading to death. See page 10 for more information about
carbon monoxide.

EWS00791

Brake discs, calipers, and linings can become very hot during use. To avoid possible
burns, let brake components cool before touching them.

Maintenance, replacement, or repair of the emission control devices and systems may
be performed by any repair establishment or individual that is certified (if applicable).

Proper periodic maintenance of your snowmobile is important in order to enjoy long, pleasur­able use. Especially important are the maintenance services related to emission control.
These controls not only function to ensure cleaner air, but are also vital to proper engine op­eration and maximum performance. In the following periodic maintenance charts, the services
related to emission control are grouped separately. These services require specialized data,
knowledge, and equipment. Yamaha dealers are trained and equipped to perform these par­ticular services.

48

Periodic maintenance and adjustment

ESU11462

Periodic maintenance chart for the emission control system

Items marked with an asterisk should be performed by a Yamaha dealer as they require spe­cial tools, data and technical skills.

INITIAL EVERY

ITEM REMARKS

Spark plugs

* Valve clearance

Crankcase breath-

*

er system

* Fuel line

* Idle speed • Check and adjust idle speed. 57

* Fuel injection • Adjust synchronization. —

* Exhaust system

• Check condition.

• Adjust gap and clean.

• Replace if necessary.

• Check and adjust valve clear­ance when engine is cold.

• Check breather hose for
cracks or damage.

• Replace if necessary.

• Check fuel hose for cracks or
damage.

• Replace if necessary.

• Check for leakage.

• Tighten or replace gasket if
necessary.

1 month

or 800 km

(500 mi)

(40 hr)

Every 40000 km (25000

Seasonally

or

4000 km

(2500 mi)

(200 hr)

mi)

PAGE

56

60

—

—

—

49

Periodic maintenance and adjustment

ESU11566

General maintenance and lubrication chart

INITIAL EVERY

Seasonally

(12000 mi)

mi) thereafter.

chart.

ITEM REMARKS

Engine oil

Engine oil filter car-

*

tridge

* Cooling system

Primary and sec-

*

ondary clutches

* Drive chain

* Drive chain oil

Brake and parking

*

brake

Control cables

Disc brake installa-

*

tion

* Slide runners

* Skis and ski runners

1 month

or 800 km

(500 mi)

(40 hr)

• Change (warm engine before
draining).

• Replace.

• Check coolant level.

• Bleed the cooling system if
necessary.

• Check engagement and shift
speed.

• Adjust if necessary.

• Inspect sheaves for wear and
damage.

• Inspect weights/rollers and
bushings for wear for primary.

• Inspect ramp shoes/bushings
for wear for secondary.

• Replace if necessary.

• Lubricate with specified
grease.

• Check chain slack.

• Adjust if necessary.

• Check oil level. 67

• Change. 67

• Adjust free play and/or replace
pads if necessary.

• Change brake fluid.

• Make sure that operation is
smooth.

• Lubricate if necessary.

• Check for slight free play.

• Lubricate shaft with specified
grease as required.

• Check for wear and damage.

• Replace if necessary.

• Check for wear and damage.

• Replace if necessary.

Whenever operating ele-

vation is changed.

Initial at 500 km (300 mi)

and every 800 km (500

See TIP following this

Every 1600 km (1000 mi) —

or

4000 km

(2500 mi)

(200 hr)

Every

20000 km

PAGE

60

60

64

—

—

—

—

67

69

69

76

73

71

50

TIP

ITEM REMARKS

* Steering system

* Steering bearings

Suspension compo-

*

nent

* Drive track

Fittings and fasten­ers

* Battery

Periodic maintenance and adjustment

INITIAL EVERY

Seasonally

4000 km

(2500 mi)

(200 hr)

mi) thereafter.

or

PAGE

73

—

76

73

78

78

• Check toe-out.

• Adjust if necessary.

• Check bearing assemblies for
looseness.

• Lubricate with specified
grease.

• Lubricate with specified
grease.

• Check ball joints for wear and
damage.

• Replace if necessary.

• Check the deflection.

• Adjust if necessary.

• Make sure that all nuts, bolts
and screws are properly tight­ened.

• Tighten if necessary.

• Check condition.

• Charge if necessary.

1 month

or 800 km

(500 mi)

(40 hr)

Initial at 500 km (300 mi)

and every 800 km (500

Brake system:
 After disassembling the master cylinder or caliper cylinder, always change the brake fluid.

Regularly check the brake fluid level and add fluid if necessary.

 Replace the oil seals of the master cylinder and caliper cylinder every two years.
 Replace the brake hose every four years, or if cracked or damaged.

51

Periodic maintenance and adjustment

NOTICE

TIP

WARNING

1

1

2

ESU13004

Tool kit

The owner’s tool kit is located in the storage
pouch. (See page 26 for more information
about the storage pouch.)
The service information included in this man­ual and the tools provided in the owner’s tool
kit are intended to assist you in the perfor­mance of preventive maintenance and minor
repairs. However, additional tools such as a
torque wrench may be necessary to perform
certain maintenance work correctly.

1. Storage pouch

2. Tool kit

ECS00782

Before starting the engine, make sure that
the tool kit is securely fastened (PZ50RT /
PZ50XT / PZ50MT) and that the storage
pouch zipper is completely closed.

ESU14231

Recommended equipment

It is good practice to carry the spare parts
and other necessary equipment with you
while riding the snowmobile so that minor re­pairs can be done if necessary. The following
should be carried at all times:

 Flashlight
 Roll of plastic tape
 Steel wire
 Tow rope
 V-belt
 Light bulbs

When you start out for a long distance trip,
extra fuel should be carried as well.

ESU11767

Removing and installing the shroud and covers

EWS00092

Be sure shroud and covers are secured
before operation. A loose shroud or cover
could move and cause loss of control.

Front cover and air filter case cover
(PZ50RT / PZ50XT / PZ50MT)

To remove the front cover and air filter case
cover

1. Unhook the latch, and then slide the front
cover upward.

If you do not have a torque wrench available
during a service operation requiring one, take
your snowmobile to a Yamaha dealer to
check the torque settings and adjust them if
necessary.

52

1. Latch

2. Front cover

Periodic maintenance and adjustment

1

2

2. Loosen the fasteners, lift up the air filter
case cover slightly, and then unhook the
cover from the air filter case to remove it.

1. Holder on the front cover

2. Projection on the air filter case cover

1. Air filter case cover

2. Fastener

To install the front cover and air filter case
cover

1. Insert the projections on the end of the
air filter case cover into the slots in the air
filter case, place it in the original position,
and then tighten the fasteners.

1. Projection on the end of the air filter case
cover

2. Slot in the air filter case

2. Fit the holders on the front cover over the
projections on the air filter case cover,
slide the front cover downward, and then
hook the latch onto the holder on the
front of the snowmobile.

Shroud and air filter case cover
(PZ50MP)

To open the shroud and remove the air filter
case cover

1. Unhook the shroud latches, and then
slowly raise the shroud forward until it
stops.

1. Shroud latch

2. Shroud

2. Loosen the fasteners, lift up the air filter
case cover slightly, and then unhook the
cover from the air filter case to remove it.

53

Periodic maintenance and adjustment

1. Air filter case cover

2. Fastener

To close the shroud and install the air filter
case cover

1. Insert the projections on the end of the
air filter case cover into the slots in the air
filter case, place it in the original position,
and then tighten the fasteners.

1. Projection on the end of the air filter case
cover

2. Slot in the air filter case

2. Slowly lower the shroud to the original
position, and then hook the shroud latch­es.

Left side cover

To remove the left side cover
Loosen the fasteners, and then remove the
left side cover.

1. Fastener

2. Left side cover

To install the left side cover
Place the left side cover in the original posi­tion, and then tighten the fasteners.

Right side cover

To remove the right side cover
Loosen the quick fastener screws, and then
remove the right side cover.

1. Right side cover

2. Quick fastener screw

To install the right side cover
Place the right side cover in the original posi­tion, and then tighten the quick fastener
screws.

Top cover (PZ50RT / PZ50XT /
PZ50MT)

To remove the top cover
Pull up on the rear of the top cover.

54

Periodic maintenance and adjustment

2

3

1. Top cover

To install the top cover
Insert the projections on the front of the top
cover into the slots in the left and right upper
covers, and then fit the projections on the
rear of the top cover into the grommets.

Right upper cover (PZ50RT / PZ50XT /
PZ50MT)

To remove the right upper cover

1. Remove the top cover. (See the above
procedure.)

2. Remove the right upper cover by remov­ing bolts A and bolt B.

Tightening torques:

Right upper cover bolt A:

8 Nm (0.8 m·kgf, 5.8 ft·lbf)

Right upper cover bolt B:

3.0 Nm (0.30 m·kgf, 2.2 ft·lbf)

2. Install the top cover.

Left and right upper covers (PZ50MP)

To remove an upper cover

1. Open the shroud. (See the above proce­dure.)

2. Loosen the fasteners, and then remove
the upper cover.

1. Fastener

2. Left upper cover

1. Right upper cover bolt A

2. Right upper cover bolt B

3. Right upper cover

To install the right upper cover

1. Place the right upper cover in the original
position, and then install and tighten
bolts A and bolt B to their specified
torques.

To install an upper cover

1. Insert the projections on the upper cover
into the slots, fit the holders on the cover
onto the grommets, and then tighten the
fasteners.

1. Projection

2. Holder

55

Periodic maintenance and adjustment

NOTICE

WARNING

distinctly different color, there could be
something wrong with the engine. For exam­ple, a very white center electrode porcelain
color could indicate an intake track air leak or
carburetion problem for that cylinder. Do not
attempt to diagnose such problems yourself.
Instead, take the snowmobile to a Yamaha
dealer for inspection and possible repairs.
You should periodically remove and inspect

1. Slot

1. Grommet

2. Close the shroud.

ECS00373

 Make sure that all cables, hoses and

leads are routed properly before install­ing the shroud and covers.

 When installing the shroud and covers,

be sure to tighten the fasteners secure­ly.

ESU11785

Checking the spark plugs

The spark plugs are important engine com­ponents and are easy to inspect. The condi­tion of the spark plugs can indicate the
condition of the engine.
Check the coloration on the white porcelain
insulator around the center electrode. The
ideal coloration at this point is a medium-to­light tan color for a snowmobile that is being
ridden normally. If any spark plug shows a

the spark plugs because heat and deposits
will cause any spark plug to slowly break
down and erode. Consult a Yamaha dealer
before changing to a different type of spark
plug.

Specified spark plug:

Manufacturer:

NGK

Model:

CR9EKB

EWS00711

Be sure to use the specified spark plug
and spark plug cap. Otherwise, the
T.O.R.S. may not work properly.

Spark plugs are produced in several different
thread lengths. The thread length or reach is
the distance from the spark plug gasket seat
to the end of the threaded portion. If the
reach is too long, overheating and engine
damage may result. If the reach is too short,
spark plug fouling and poor performance
may result. Also, if the reach is too short, car­bon will form on the exposed threads result­ing in combustion chamber hot spots and
thread damage. Always use a spark plug with
the specified reach.

Spark plug reach:

19.0 mm (0.75 in)

56

Periodic maintenance and adjustment

NOTICE

1 1

2

1. Spark plug gap

2. Spark plug reach

Before installing any spark plug, measure the
spark plug gap with a wire thickness gauge
and adjust to specification.

Spark plug gap:

0.6–0.7 mm (0.024–0.028 in)

When installing the spark plug, always clean
the gasket surface. Wipe off any grime from
the threads and tighten the spark plug to the
specified torque.

Spark plug tightening torque:

13 Nm (1.3 m·kgf, 9.4 ft·lbf)

ECS00383

Make sure that the spark plug caps are se­curely installed. Otherwise the spark plug
caps could be damaged due to engine vi­bration.

ESU11813

Adjusting the engine idling speed

1. Place the snowmobile on a level surface
and apply the parking brake.

2. Start the engine and warm it up.

3. Select the engine speed meter mode.
(See page 16 for details.)

4. Remove the rubber cap.

1. Rubber cap

5. Insert a Phillips screwdriver into the hole,
and then turn the idle adjusting screw in
or out to adjust the engine idling speed.

1. Idle adjusting screw

Standard engine idling speed:

1700–1900 r/min

6. Install the rubber cap.

ESU13664

Adjusting the throttle lever free play (PZ50RT / PZ50XT / PZ50MT)

1. Slide the rubber cover back.

2. Loosen the locknut.

3. To increase the throttle lever free play,
turn the adjusting nut in direction (a). To
decrease the throttle lever free play, turn
the adjusting nut in direction (b).

57

Periodic maintenance and adjustment

WARNING

TIP

(a)

(b)

1

2

3

4

 Do not rev the engine to the point that

the clutch engages.

1. Locknut

2. Throttle lever free play adjusting nut

3. Rubber cover

4. Throttle lever free play

Throttle lever free play:

2.0–3.0 mm (0.08–0.12 in)

4. Tighten the locknut.

5. Slide the rubber cover to its original posi­tion.

ESU11852

Checking the throttle lever free play (PZ50MP)

Check the throttle lever free play.

Throttle lever free play:

2.0–3.0 mm (0.08–0.12 in)

Have a Yamaha dealer adjust the free play if
necessary.

ESU11864

Checking the throttle override system (T.O.R.S.)

EWS00353

Check the T.O.R.S. for proper operation.

1. Start the engine.

Refer to the “Starting the engine” section on
page 39.

2. Hold the pivot point of the throttle lever
away from the throttle switch by putting
your thumb (above) and forefinger (be­low) between the throttle lever pivot and
the engine stop switch housing.
While holding the pivot point as de­scribed above, squeeze the throttle lever
gradually.

When checking the T.O.R.S., take precau­tions to avoid snowmobile movement
which could cause an accident:
 Make sure that the throttle lever moves

smoothly with the engine off before
checking the T.O.R.S.

 Make sure that the parking brake is ap-

plied.

58

Periodic maintenance and adjustment

1

1. Throttle lever pivot

2. Engine stop switch housing

3. Throttle lever

The T.O.R.S. will be activated and the
engine speed will be limited to less than
the clutch engagement speed. (See page
86 for the clutch engagement speed.)

WARNING! If the engine speed does
not decrease to less than the clutch
engagement speed, stop the engine
by turning the main switch to the off
position and consult a Yamaha dealer.
Operating the snowmobile with a mal­functioning T.O.R.S. could result in
loss of control.

ESU11895

Checking the air filter

Check that there is no snow under the air filter
element frame after each ride. In addition,
snow may need to be cleaned during a ride
depending on the riding conditions.

[EWS00363]

1. Place the snowmobile on a level surface
and apply the parking brake.

2. Remove the front cover (PZ50RT /
PZ50XT / PZ50MT) or open the shroud
(PZ50MP), and then remove the air filter
case cover. (See page 52 for the proce­dures.)

3. Unhook the air filter element frame fas­teners.

1. Air filter element frame fastener

4. Lift up the air filter element frame and
check the air filter element. If there is any
snow on the air filter element, remove the
element and brush off the snow, and
then install the air filter element.

5. Place the air filter element frame in the
original position, and then hook the fas­teners onto the frame.

6. Install the air filter case cover, and then
install the front cover (PZ50RT /
PZ50XT / PZ50MT) or close the shroud
(PZ50MP).

59

Periodic maintenance and adjustment

WARNING

NOTICE

ESU11932

High-altitude settings

Operating at high altitude reduces the perfor­mance of a gasoline engine about 3% for ev­ery 305 m (1000 ft) of elevation. This is
because there is less air as altitude increases.
Less air means less oxygen available for
combustion.
Your snowmobile utilizes an electronic fuel
injection system that delivers the optimal
air/fuel ratio required by the engine. There­fore, the fuel injection system does not need
to be adjusted, even for operation at high al­titude.

Remember:

Less air at higher altitude means there is less
horsepower available, even with the optimal
air/fuel ratio. Expect acceleration and top
speed to be reduced at higher altitudes.
To overcome operating with less power at
high altitudes, your snowmobile may also re­quire different settings for the drive chain
gears and V-belt clutch to avoid poor perfor­mance and rapid wear. If you plan to operate
your snowmobile at an altitude different from
the area where you bought it, be sure to con­sult a Yamaha dealer. The dealer can tell you
if there are any changes necessary for the al­titude where you plan to ride. NOTICE: The

drive chain gears and V-belt clutch should
be adjusted when operating above a high
altitude of 900 m (3000 ft). Consult a
Yamaha dealer.

ESU11951

[ECS00432]

Valve clearance

The valve clearance changes with use, result­ing in improper air-fuel mixture and/or engine
noise. To prevent this from occurring, the
valve clearance must be adjusted by a
Yamaha dealer at the intervals specified in
the periodic maintenance chart.

ESU11989

Engine oil and oil filter cartridge

The engine oil level should be checked before
each use. In addition, the oil must be
changed and the oil filter cartridge replaced
at the intervals specified in the periodic main­tenance and lubrication chart.

EWS00371

Engine oil is extremely hot immediately af­ter the engine is turned off. Coming into
contact with or getting any engine oil on
your clothes could result in burns.

ECS00442

 Do not run the engine with too much or

not enough oil in the oil tank. Oil could
spray out or the engine could be dam­aged.

 Be sure to change the engine oil after

the first 800 km (500 mi) of operation,
and every 4000 km (2500 mi) thereafter
or at the start of a new season, other­wise the engine will wear quickly.

 The oil filter cartridge should be re-

placed after the first 800 km (500 mi) of
operation, and every 20000 km (12000
mi) of operation thereafter. Have a
Yamaha dealer replace the oil filter car­tridge.

To check the engine oil level

1. Place the snowmobile on a level surface
and apply the parking brake.

60

Periodic maintenance and adjustment

TIP

TIP

2. Start the engine, warm it up for 10–15
minutes, and then turn it off.

5. Remove the oil filler cap, wipe the dip­stick clean, insert it back into the oil filler
hole (without screwing it in), and then re­move it again to check the oil level.

 The engine can also be warmed up by driv-

ing the snowmobile for 10–15 minutes.

 After driving the snowmobile, allow the en-

gine to idle for at least 10 seconds before
turning it off.

3. Remove the right side cover (PZ50RT /
PZ50XT / PZ50MT), or open the shroud
and remove the right upper cover and
the right side cover (PZ50MP). (See page
52 for the procedures.)

4. Disconnect the oil level gauge coupler.

NOTICE: Disconnect the oil level
gauge coupler before removing the oil
filler cap, otherwise the cable could
twist and break.

1. Oil level gauge coupler

2. Oil filler cap

[ECS00453]

1. Oil filler cap

2. Dipstick

The engine oil should be between the “H” and
“L” level marks on the dipstick.

1. “H” level mark

2. “L” level mark

6. If the engine oil is below the “L” level
mark, add sufficient oil of the recom­mended type to raise it to the “H” level
mark. (See page 86 for the recommend­ed oil.) NOTICE: When adding the en-

gine oil, be careful not to fill above the
“H” level mark on the dipstick. Use
only the recommended oil. (See page

86.) Make sure that no foreign material
enters the engine oil tank.

[ECS00463]

61

Periodic maintenance and adjustment

2

2

1

1

2

7. Insert the dipstick into the oil filler hole,
and then tighten the oil filler cap.

8. Connect the oil level gauge coupler.

9. Install the right side cover (PZ50RT /
PZ50XT / PZ50MT), or install the right
side cover and the right upper cover, and
then close the shroud (PZ50MP).

To change the engine oil

1. Place the snowmobile on a level surface
and apply the parking brake.

2. Start the engine, warm it up for several
minutes, and then turn it off.

3. Remove the right side cover (PZ50RT /
PZ50XT / PZ50MT), or open the shroud
and remove the right upper cover and
the right side cover (PZ50MP). (See page
52 for the procedures.)

4. Remove the bottom panel by removing
the bolts.

1. Right lower cover

2. Bolt

6. Place an oil pan under the oil tank to col­lect the used oil.

7. Disconnect the oil level gauge coupler.

1. Bottom panel

2. Bolt

5. Remove the right lower cover by remov­ing the bolts.

62

1. Oil level gauge coupler

2. Oil filler cap

8. Remove the oil filler cap, and then re­move the engine oil drain bolt and its
gasket to drain the oil from the oil tank.

1. Engine oil drain bolt (oil tank)

2. Gasket

Periodic maintenance and adjustment

TIP

1

2

9. Place an oil pan under the engine to col­lect the used oil.

10. Remove the engine oil drain bolt and its
gasket to drain the oil from the crank­case.

1. Engine oil drain bolt (crankcase)

2. Gasket

Dispose of used oil according to local regula­tions.

11. Install the engine oil drain bolts and their
new gasket, and then tighten the bolts to
the specified torques.

only the recommended oil. (See page

86.) Make sure that no foreign material
enters the engine oil tank.

1. “H” level mark

2. “L” level mark

Recommended engine oil:

See page 86.

Oil quantity:

With oil filter cartridge replacement:

2.6 L (2.78 US qt, 2.31 Imp.qt)
Without oil filter cartridge replace­ment:

2.4 L (2.59 US qt, 2.16 Imp.qt)
Tot a l a m ou n t:

3.0 L (3.17 US qt, 2.64 Imp.qt)

[ECS00463]

Tightening torques:

Engine oil drain bolt (crankcase):

30 Nm (3.0 m·kgf, 22 ft·lbf)

Engine oil drain bolt (oil tank):

16 Nm (1.6 m·kgf, 12 ft·lbf)

12. Add 1.5 L (1.59 US qt, 1.32 Imp.qt) of the
recommended engine oil to the oil tank,
and then install and tighten the oil filler
cap.

13. Start the engine, warm it up for several
minutes, and then turn it off.

14. Remove the oil filler cap, and then add
sufficient oil of the recommended type to
raise it to the “H” level mark on the dip­stick. NOTICE: When adding the en-

gine oil, be careful not to fill above the
“H” level mark on the dipstick. Use

15. Install and tighten the oil filler cap.

16. Start the engine, and then let it idle for
several minutes while checking it for oil
leakage. If oil is leaking, immediately turn
the engine off and make sure that the en­gine oil drain bolt, the oil tank drain bolt,
and the oil filler cap are installed correct­ly.

17. Turn the engine off, and then connect the
oil level gauge coupler.

18. Install the right lower cover by installing
the bolts.

19. Install the bottom panel by installing the
bolts.

20. Install the right side cover (PZ50RT /
PZ50XT / PZ50MT), or install the right
side cover and the right upper cover, and
then close the shroud (PZ50MP).

63

Periodic maintenance and adjustment

WARNING

1

NOTICE: If oil is leaking or the oil level
warning indicator comes on when the
engine is running, immediately turn
the engine off and have a Yamaha
dealer check the snowmobile. Con­tinuing to operate the engine under
such conditions could cause severe
engine damage.

ESU12048

[ECS00472]

Cooling system

The coolant level should be checked before
each ride. In addition, the cooling system
must be bled at the intervals specified in the
periodic maintenance and lubrication chart.

EWS00381

Do not remove the coolant reservoir cap
when the engine is hot. Scalding hot fluid
and steam may be blown out under pres­sure, which could cause serious injury.
When the engine has cooled, place a thick
rag or towel over the coolant reservoir
cap, and slowly rotate the cap counter­clockwise to the detent. This procedure
allows any residual pressure to escape.
When the hissing sound has stopped,
press down on the cap while turning coun­terclockwise and remove it.

To check the coolant level

1. Place the snowmobile on a level surface
and apply the parking brake.

2. Remove the top cover (PZ50RT /
PZ50XT / PZ50MT) or open the shroud
(PZ50MP), and then remove the right up­per cover. (See page 52 for the proce­dures.)

3. Check the coolant level in the coolant
reservoir when the engine is cold. If the
coolant level is below the “COLD LEVEL”
mark, add coolant until it reaches the
“COLD LEVEL” mark. (See the following
section “Replenishing the coolant” for
more details.) NOTICE: If coolant is not

available, use distilled water or soft
tap water instead. Do not use hard
water or salt water since it is harmful
to the engine. If water has been used
instead of coolant, replace it with
coolant as soon as possible, other­wise the cooling system will not be
protected against frost and corrosion.
If water has been added to the cool­ant, have a Yamaha dealer check the
antifreeze content of the coolant as
soon as possible, otherwise the effec­tiveness of the coolant will be re­duced.

[ECS00493]

1. Coolant reservoir cap

64

1. “COLD LEVEL” mark

Periodic maintenance and adjustment

NOTICE

TIP

WARNING

4. Install the right upper cover, and then in­stall the top cover (PZ50RT / PZ50XT /
PZ50MT) or close the shroud (PZ50MP).

Bleeding the cooling system

The cooling system must be bled if the cool­ant reservoir becomes empty, if air can be
seen in the cooling system, or if there is a
cooling system leak. Consult a Yamaha deal­er.

ECS00501

Operating the engine with an improperly
bled cooling system can cause overheat­ing and severe engine damage.

Replenishing the coolant

1. Place the snowmobile on a level surface
and apply the parking brake.

2. Remove the top cover (PZ50RT /
PZ50XT / PZ50MT) or open the shroud
(PZ50MP), and then remove the right up­per cover. (See page 52 for the proce­dures.)

3. Remove the coolant reservoir cap, add
the recommended coolant until it reach­es the “COLD LEVEL” mark, and then in­stall the cap.

Recommended antifreeze:

High-quality ethylene glycol anti­freeze containing corrosion inhibitors

Antifreeze and water mixing ratio:

3:2

Total amount:

3.60 L (3.81 US qt, 3.17 Imp.qt)
(PZ50MT, PZ50RT, PZ50XT)

3.70 L (3.91 US qt, 3.26 Imp.qt)
(PZ50MP)

4. Start the engine, allow it to idle for sever­al minutes, and then turn it off.

5. Check for any coolant leakage. If coolant
is leaking, check for the cause.

If you find any leaks, consult a Yamaha deal­er.

6. Fill the coolant reservoir with coolant un­til it reaches the “COLD LEVEL” mark.

7. Install the right upper cover, and then in­stall the top cover (PZ50RT / PZ50XT /
PZ50MT) or close the shroud (PZ50MP).

ESU12086

V-belt

EWS00403

1. “COLD LEVEL” mark

2. Coolant reservoir cap

 Coming in contact with the rotating V-

belt or clutch parts can cause severe in­jury or death. Never run the engine with
the drive guard removed.

65

Periodic maintenance and adjustment

NOTICE

WARNING

NOTICE

 Make sure that the drive guard is in-

stalled securely before operating the
snowmobile to protect against severe
injury or death from a broken V-belt or
other part should it come off the snow­mobile while it is in operation.

ECS00831

Never run the engine with the V-belt re­moved. Clutch components can be dam­aged.

The V-belt should be checked before each
ride.

To check the V-belt

1. Remove the left side cover (PZ50RT /
PZ50XT / PZ50MT), or open the shroud
and remove the left upper cover and the
left side cover (PZ50MP). (See page 52
for the procedures.)

2. Remove the drive guard.

3. Check the V-belt for wear and damage.
Replace if necessary.

1. V-belt wear limit

5. Install the left side cover (PZ50RT /
PZ50XT / PZ50MT), or install the left side
cover and the left upper cover, and then
close the shroud (PZ50MP).

To replace the V-belt

EWS00412

When installing a new V-belt, make sure
that it is positioned properly. Otherwise,
the V-belt clutch engagement speed will
be changed and the snowmobile may
move unexpectedly when the engine is
started, which could cause an accident.

ECS00521

To ensure proper clutch performance as
the V-belt wears, it is necessary to adjust
the gap between the secondary fixed
sheave and the secondary sliding sheave
by changing the positions of the spacers.
Have a Yamaha dealer make this adjust­ment.

1. Place the snowmobile on a level surface
and apply the parking brake.

2. Remove the left side cover (PZ50RT /
PZ50XT / PZ50MT), or open the shroud
and remove the left upper cover and the
left side cover (PZ50MP). (See page 52
for the procedures.)

3. Remove the drive guard.

4. Rotate the secondary sliding sheave
clockwise and push it so that it separates
from the secondary fixed sheave.

New V-belt width:

34.5 mm (1.36 in)

V-belt wear limit width:

32.5 mm (1.28 in)

4. Install the drive guard.

66

Periodic maintenance and adjustment

1. Secondary sliding sheave

2. Secondary fixed sheave

5. Pull the V-belt up over the secondary
fixed sheave.

1. V-belt

6. Remove the V-belt from the secondary
sheave assembly and primary sheave
assembly.

7. Install the new V-belt over the primary
sheave assembly.

8. Rotate the secondary sliding sheave
clockwise and push it so that it separates
from the secondary fixed sheave.

1. Secondary sliding sheave

2. Secondary fixed sheave

9. Install the V-belt between the secondary
fixed sheave and the secondary sliding
sheave.

1. V-belt

10. Install the drive guard.

11. Install the left side cover (PZ50RT /
PZ50XT / PZ50MT), or install the left side
cover and the left upper cover, and then
close the shroud (PZ50MP).

ESU12127

Drive chain housing

To check the drive chain housing oil
level

1. Place the snowmobile on a level surface
and apply the parking brake.

2. Remove the right side cover. (See page
52 for removal procedures.)

3. Remove the dipstick, wipe it off with a
clean rag, and then insert it back into the
filler hole.

67

Periodic maintenance and adjustment

1

1

2

5. Install the dipstick, making sure to align
the notch in the dipstick handle with the
projection on the drive chain housing.

1. Dipstick

4. Remove the dipstick and check that the
oil level is within the range shown at the
bottom of the dipstick. If the oil does not
reach the bottom of the dipstick, add
sufficient oil of the recommended type to
raise it to the correct level. NOTICE:

Make sure that no foreign material en­ters the drive chain housing.

1. Oil level range

[ECS00532]

1. Notch

2. Projection

6. Install the right side cover.

7. Release the parking brake.

8. Drive the snowmobile for several minutes
at more than 20 km/h (12 mi/h), and then
repeat steps 1–7 to check the oil level
again.

To adjust the chain tension

1. Remove the right side cover. (See page
52 for removal procedures.)

2. Loosen the locknut.

3. Turn the chain tension adjusting bolt
clockwise until it is finger tight, and then
loosen it 1/4 turn.

Recommended drive chain oil:

SAE 75W or 80W API GL-3 Gear oil

68

1. Locknut

2. Chain tension adjusting bolt

Periodic maintenance and adjustment

WARNING

NOTICE

4. While holding the chain tension adjusting
bolt with a wrench, tighten the locknut to
the specified torque.

Tightening torque:

Locknut:

25 Nm (2.5 m·kgf, 18 ft·lbf)

5. Install the right side cover.

ESU13433

Brake and parking brake

EWS00441

 A soft, spongy feeling in the brake lever

indicates a failure in the brake system.

 Do not operate the snowmobile if you

find any problems in the brake system.
You could lose braking ability, which
could lead to an accident. Ask a Yamaha
dealer to inspect and repair the brake
system.

ECS00061

Make sure that the brake lever end does
not project out over the handlebar end.
This will help prevent brake lever damage
when the snowmobile is placed on its side
for service.

Test the brake at a low speed when starting
out to make sure that it is working properly. If
the brake does not provide proper braking
performance, inspect the brake for wear or
brake fluid leakage. (See the following sec­tion for more details.)

3. Check the brake pads for wear.
If the brake pads reach the wear limit,
ask a Yamaha dealer to replace them.

1. Brake pad wear limit

Brake pad wear limit:

4.7 mm (0.19 in)

4. Install the right side cover.

Checking the parking brake pads

Check the parking brake pads for wear ac­cording to the following procedure.

1. Remove the right side cover. (See page
52 for removal procedures.)

2. Check the parking brake pads for wear
by measuring the thickness of the pads.
If the parking brake pads reach the wear
limit, ask a Yamaha dealer to replace
them.

Checking the brake pads

Check the brake pads for wear according to
the following procedure.

1. Place the snowmobile on a level surface
and apply the parking brake.

2. Remove the right side cover. (See page
52 for removal procedures.)

1. Parking brake pad wear limit

Parking brake pad wear limit:

1.2 mm (0.047 in)

69

Periodic maintenance and adjustment

4

3

3. Install the right side cover.

To adjust the parking brake
As the parking brake pads wear, adjustment
may be necessary to ensure proper brake
performance.

1. Remove the right side cover. (See page
52 for removal procedures.)

2. Loosen the parking brake pad adjusting
bolt locknut and the parking brake pad
adjusting bolt.

3. Loosen the parking brake cable locknut.

4. Turn the parking brake cable adjusting
bolt in or out to adjust the cable length.

1. Parking brake pad adjusting bolt locknut

2. Parking brake pad adjusting bolt

3. Parking brake cable locknut

4. Parking brake cable adjusting bolt

5. Parking brake cable length

1. Parking brake pad

2. Brake disc

3. Parking brake pad adjusting bolt

4. Parking brake pad adjusting bolt locknut

Parking brake pad to brake disc clear­ance (a) + (b):

1.5–2.0 mm (0.059–0.079 in)

7. Tighten the parking brake pad adjusting
bolt locknut.

8. Install the right side cover.

Checking the brake fluid level

Before riding, check that the brake fluid is
above the lower level. Check the brake fluid
level with the top of the reservoir level. Re­plenish the brake fluid if necessary.

Parking brake cable length:

43.5–46.5 mm (1.713–1.831 in)

5. Tighten the parking brake cable locknut.

6. Turn the parking brake pad adjusting bolt
in or out to adjust the clearance between
the parking brake pads and the brake
disc.

70

1. Lower level

Specified brake fluid:

DOT 4

Periodic maintenance and adjustment

WARNING

NOTICE

WARNING

NOTICE

1

EWS00821

Improper maintenance can result in loss
of braking ability. Observe these precau­tions:
 Insufficient brake fluid may allow air to

enter the brake system, reducing brak­ing performance.

 Clean the filler cap before removing.

Use only DOT 4 brake fluid from a sealed
container.

 Use only the specified brake fluid; other-

wise, the rubber seals may deteriorate,
causing leakage.

 Refill with the same type of brake fluid.

Adding a brake fluid other than DOT 4
may result in a harmful chemical reac­tion.

 Be careful that water does not enter the

brake fluid reservoir when refilling. Wa­ter will significantly lower the boiling
point of the fluid and may result in vapor
lock.

ECS01051

Brake fluid may damage painted surfaces
or plastic parts. Always clean up spilled
fluid immediately.

Changing the brake fluid

EWS00472

Make sure that the brake fluid and the fol­lowing parts are replaced by a Yamaha
dealer.

Brake fluid replacement is necessary when
the following components are replaced dur­ing the periodic maintenance or if they are
damaged or leaking.
 All oil seals of the master cylinder and cali-

per cylinder

 The brake hose

ESU14511

Skis and ski runners

Checking the skis and ski runners

Check the skis and ski runners for wear and
damage. Replace if necessary.

ECS00561

Avoid scratching the skis when loading
and unloading the snowmobile, when rid­ing in areas with little or no snow, or on
sharp edges such as concrete, curbs, etc.
This will wear or damage the skis.

PZ50MT / PZ50MP

As the brake pads wear, it is normal for the
brake fluid level to gradually go down. A low
brake fluid level may indicate worn brake
pads and/or brake system leakage; therefore,
be sure to check the brake pads for wear and
the brake system for leakage. If the brake flu­id level goes down suddenly, have a Yamaha
dealer check the cause before further riding.

1. Ski runner wear limit

71

Periodic maintenance and adjustment

1

2

1 1

1

3

2 2

1. Ski wear limit

2. Ski runner

Ski runner wear limit:

6.0 mm (0.24 in)

Ski wear limit:

24.0 mm (0.94 in)

1. Ski wear limit (front)

2. Ski runner

3. Ski wear limit (rear)

PZ50RT / PZ50XT

1. Ski runner wear limit

72

Ski runner wear limit:

6.0 mm (0.24 in)

Ski wear limit (front):

13.0 mm (0.51 in)

Ski wear limit (rear):

8.0 mm (0.31 in)

Aligning the skis

1. Turn the handlebar so the skis face
straight ahead.

2. Check the following for ski alignment:

 Skis are facing forward.
 Ski toe-out (distance A – distance B) is

within specification.

1. Distance A

2. Distance B

Periodic maintenance and adjustment

TIP

WARNING

WARNING

Ski toe-out (distance A – distance B):

0.0–15.0 mm (0.00–0.59 in)

Move the front tip of each ski fully inward be­fore measuring or aligning.

3. If the alignment is not correct, consult a
Yamaha dealer.

ESU12153

Steering system

Check the handlebar for excessive free play.

To check the handlebar

1. Push the handlebar up and down and
back and forth.

2. Turn the handlebar slightly to the right
and left.

If excessive free play is felt, consult a Yamaha
dealer.

ESU12179

Drive track and slide runners

Drive track

EWS00482

 When the rear of the snowmobile is

raised to allow the drive track to spin, a
suitable stand must be used to support
the rear of the snowmobile. Never allow
anyone to hold the rear of the snowmo­bile off the ground to allow the drive
track to spin. Never allow anyone near a
rotating drive track.

 Inspect the drive track condition fre-

quently. Replace any damaged slide
metal. Replace the drive track if it is
damaged to the depth where fabric rein­forcement material is visible or support
rods are broken. Otherwise, track dam­age or failure could result in loss of
braking ability and snowmobile control,
which could cause an accident.

Checking the drive track

EWS00491

Do not operate the snowmobile if you find
damage to the drive track, or if it has been
maladjusted. Drive track damage or failure
could result in loss of braking ability and
snowmobile control, which could cause
an accident.

Check the drive track alignment and deflec­tion, and check the track for wear and dam­age.
Adjust or replace if necessary. (See the fol­lowing section for more details.)

A broken track, track fittings or debris
thrown by the drive track could be danger­ous to an operator or bystanders. Observe
the following precautions:
 Do not allow anyone to stand behind the

snowmobile when the engine is running.

73

Periodic maintenance and adjustment

TIP

1

2

Checking the drive track alignment

1. Lift the rear of the snowmobile onto a
suitable stand to raise the drive track off
the ground.

2. Start the engine and rotate the drive
track one or two turns. Stop the engine.

3. Check the drive track alignment with the
slide runners. If the alignment is incor­rect, adjust the drive track.

1. Drive track deflection

2. Slide runner

Standard drive track deflection:

30.0–35.0 mm (1.18–1.38 in)

3. If the deflection is incorrect, adjust the
drive track.

Adjusting the drive track alignment and de-

1. Slide runner

Measuring the drive track deflection

1. Lay the snowmobile on its side.

2. Measure the drive track deflection with a
spring scale. Pull at the center of the
drive track with a force of 100 N (10 kgf,
22 lbf).

flection

1. Loosen the rear axle nut.

1. Spring scale

Measure the gap between the slide runner
and the edge of the track window on both
sides.

74

1. Rear axle nut

2. Lift the rear of the snowmobile onto a
suitable stand to raise the drive track off
the ground.

3. Start the engine and rotate the drive
track one or two turns. Stop the engine.

4. Align the drive track by turning the left
and right adjusting nuts.

Periodic maintenance and adjustment

Drive track

alignment

Left adjusting
nut

Right adjust­ing nut

1. Left adjusting nut

2. Right adjusting nut

Shifted to right

Shifted to

right

Turn out Turn in

Tur n i n Turn o u t

Shifted to left

Shifted to left

1. Forward

2. Gap

3. Slide runner

4. Drive track

5. Slide metal

5. Adjust the drive track deflection to spec­ification. NOTICE: The right and left ad-

justing nuts should be turned an equal
amount.

Drive track

deflection

Left adjusting
nut

Right adjust­ing nut

[ECS00593]

More than

specified

Turn in Turn out

Turn in Turn out

Less than

specified

1. Forward

2. Gap

3. Slide runner

4. Drive track

5. Slide metal

6. Recheck alignment and deflection. If
necessary, repeat steps 3 to 5 until the
proper adjustment is achieved.

7. Lower the snowmobile to the ground.

8. Tighten the rear axle nut.

Rear axle nut tightening torque:

75 Nm (7.5 m·kgf, 54 ft·lbf)

Slide runners

Check the slide runners for wear and dam­age.
If the slide runners reach the wear limit, they
should be replaced.

75

Periodic maintenance and adjustment

NOTICE

NOTICE

WARNING

TIP

1

ECS00611

 Only use in deep snow riding conditions.
 Operation on areas with light snowfall,

ice, hard-packed snow, dirt, or grass will
result in rapid wear or damage to the
track and slide runners from lack of
snow which serves as a lubricant.

ESU12199

1. Slide runner

2. Wear limit height

Slide runner wear limit height:

10.5 mm (0.41 in)

ECS00351

Ride on fresh snow frequently. Operating
on ice or hard-packed snow will rapidly
wear the slide runners.

ESU12183

High-profile pattern drive track

Lubrication

Lubricate the following points with the speci­fied grease.

EWS00512

Do not grease the throttle cable because it
could become frozen, which could cause
loss of control. Apply a dab of grease onto
the cable end only.

For parts equipped with a grease nipple, use
a grease gun.

(PZ50XT / PZ50MT)

This snowmobile is originally equipped with a
high-profile pattern drive track with a lug
height of 38 mm (1.5 in.) or more specifically
for use in deep snow riding conditions.
Therefore, avoid prolonged operation on hard
surfaces such as ice, hard-packed snow, dirt,
etc., to extend the life of the track and slide
runners.

76

Lubricants:

Brake lever:

Silicone grease

Other lubrication points:

Low-temperature grease

1. Lubrication point

1. Throttle cable end

1

Periodic maintenance and adjustment

3. Remove the bulb holder cover.

PZ50RT / PZ50XT / PZ50MT

PZ50RT / PZ50XT / PZ50MT

1. Grease nipple

PZ50MP

1. Grease nipple

ESU12243

Replacing a headlight bulb

1. Remove the top cover (PZ50RT /
PZ50XT / PZ50MT) or open the shroud
(PZ50MP). (See page 52 for removal pro­cedures.)

2. Disconnect the headlight coupler.

1. Headlight coupler

2. Bulb holder cover

PZ50MP

1. Headlight coupler

2. Bulb holder cover

4. Unhook the bulb holder, and then re­move the burnt-out bulb.

1. Bulb holder

77

Periodic maintenance and adjustment

WARNING

1

5. Install a new bulb, and then hook the
bulb holder onto the headlight unit.

NOTICE: Keep oil and your hands
away from the glass part of the bulb or
its life and illumination will be affect­ed. If the glass is oil stained, thorough­ly clean it with a cloth moistened with
alcohol or lacquer thinner.

1. Do not touch the glass part of the bulb.

Bulb type:

Halogen bulb

6. Install the bulb holder cover, and then
connect the headlight coupler.

7. Install the top cover (PZ50RT / PZ50XT /
PZ50MT) or close the shroud (PZ50MP).

ESU12281

Adjusting the headlight beams

Turn the headlight beam adjusting screws in
or out to adjust the headlight beams. The
headlight beams move as follows depending
on the turning direction of the headlight beam
adjusting screws.

 Direction (a): Down and to the left
 Direction (b): Up and to the right
 Direction (c): Down and to the right
 Direction (d): Up and to the left

[ECS00622]

1. Headlight beam adjusting screw

ESU12291

Fittings and fasteners

Check the tightness of the fittings and fasten­ers.
Tighten in proper sequence and torque if
necessary.

ESU13891

Battery

The battery is located behind the right side
cover. (See page 52 for right side cover re­moval procedures.)
This model is equipped with a VRLA (Valve
Regulated Lead Acid) battery. There is no
need to check the electrolyte or to add dis­tilled water. However, the battery lead con­nections need to be checked and, if
necessary, tightened.

EWS00541

Battery electrolyte is poisonous and dan­gerous. It contains sulfuric acid and can
cause severe burns. Avoid contact with
skin, eyes, or clothing.
ANTIDOTE:

 EXTERNAL: Flush with water.
 INTERNAL: Drink large quantities of wa-

ter or milk. Follow with milk of magne­sia, beaten egg, or vegetable oil. Call
physician immediately.

 EYES: Flush with water for 15 minutes

and get prompt medical attention.

78

Periodic maintenance and adjustment

WARNING

NOTICE

WARNING

NOTICE

1

2

Batteries produce explosive gases. Keep
sparks, flame, cigarettes, etc. away. Venti­late when charging or using in an enclosed
space. Always shield your eyes when
working near batteries.
KEEP OUT OF THE REACH OF CHILDREN.

Charge or have a Yamaha dealer charge the
battery as soon as possible if it seems to
have discharged. Keep in mind that the bat­tery tends to discharge more quickly if the
snowmobile is equipped with electrical ac­cessories.

EWS00611

 Never smoke around the battery while it

is being charged. Sparks may ignite the
hydrogen gas created by the battery.

 Disconnect the negative lead first, then

the positive lead from the battery.

 Connect the positive lead first, then the

negative lead to the battery when install­ing the battery.

 Never connect the battery to or discon-

nect it from the snowmobile while it is
being charged. Sparks may ignite the
hydrogen gas created by the battery.

 Make sure that the battery terminals are

tight.

ECS00844

 To charge a VRLA (Valve Regulated

Lead Acid) battery, a special (constant­voltage) battery charger is required. Us­ing a conventional battery charger will
damage the battery.

 Do not charge the battery quickly.

ESU12355

Replacing a fuse

EWS00551

Be sure to use the specified fuse. A wrong
fuse could cause electrical system dam­age or A FIRE HAZARD.

ECS00632

Be sure to turn the main switch to the off
position and disconnect the negative bat­tery lead to prevent accidental short-cir­cuiting.

1. Remove the right side cover. (See page
52 for removal procedures.)

2. Disconnect the negative battery lead by
removing the bolt.

1. Negative battery lead

2. Bolt

3. Replace the blown fuse with one of the
proper amperage.

79

Periodic maintenance and adjustment

TIP

Specified fuses:

Main fuse:

40.0 A

Fuel injection system fuse:

10.0 A

Headlight fuse:

20.0 A

Signaling system fuse:

7.5 A

Auxiliary DC jack fuse:

3.0 A

1. Main fuse

2. Spare fuse

3. Fuel injection system fuse

Ignition fuse:

20.0 A

Radiator fan fuse:

15.0 A

Electric shift reverse system fuse:

4.0 A

Spare fuses:

20.0 A, 15.0 A, 10.0 A, 7.5 A, 4.0 A,

3.0 A

4. Connect the negative battery lead by in­stalling the bolt.

5. Install the right side cover.

If the fuse immediately blows again, ask a
Yamaha dealer to inspect the snowmobile.

1. “HEAD” (headlight) fuse

2. “SIG” (signaling system) fuse

3. “DC TERM” (auxiliary DC jack) fuse

4. “IGN” (ignition) fuse

5. “FAN” (radiator fan) fuse

6. “GEAR” (electric shift reverse system) fuse

7. Spare fuse

80

ESU12398

WARNING

1

Engine turns over but does not start

1. Fuel system
 No fuel supplied to combustion cham-

ber

•No fuel in tank:
Supply fuel.

↓

• Clogged fuel line:
Clean fuel line.

↓

• Clogged injector:
Ask a Yamaha dealer to check.

 Fuel supplied to combustion chamber

• Flooded engine:
Crank engine or wipe spark plugs
dry.

2. Electrical system
 Poor spark or no spark

• Spark plugs are dirty with carbon or
are wet:
Remove carbon or wipe spark plugs
dry. Replace if necessary.

↓

• Faulty ignition system:
Ask a Yamaha dealer to check.

↓

• T.O.R.S. malfunction:
Disconnect throttle switch connec­tors and connect wire harness con­nectors together to bypass T.O.R.S.

WARNING! Before bypassing the
T.O.R.S., make sure that the throt­tle returns properly to the fully
closed position. The T.O.R.S. is an
important safety device; in the
case of a malfunction, take the
snowmobile to a Yamaha dealer
immediately for repair.

[EWS00562]

Troubleshooting

1. Throttle switch connector

3. Compression
 Insufficient

• Loose cylinder head nuts:
Tighten nuts properly.

↓

• Worn or damaged gasket:
Replace gasket.

↓

• Worn or damaged piston and cylin­der:
Ask a Yamaha dealer to check.

Discharged battery

If the battery is discharged, the engine can be
started using a fully-charged 12-volt battery
and jumper cables.

EWS00581

 Connect the jumper cables only to the

battery terminals. Do not connect them
to the frame or any wire or other lead.

81

Troubleshooting

 When connecting the jumper cables, do

not contact the jumper cables to each
other or to the frame or any metal part of
the snowmobile. This can cause electri­cal system damage or A FIRE HAZARD.

1. Apply the parking brake and turn the key
to the off position.

2. Remove the right side cover. (See page
52 for removal procedures.)

3. Connect the red (+) jumper cable to the
positive (+) terminal of the discharged
battery.

4. Connect the other end of the red (+)
jumper cable to the positive (+) terminal
of the booster battery.

5. Connect the black (–) jumper cable to the
negative (–) terminal of the booster bat­tery.

6. Connect the other end of the black (–)
jumper cable to the negative (–) terminal
of the discharged battery. NOTI CE : Do

not reverse the connections! Make
sure that all connections are secure
and correct before attempting to start
the engine. Any wrong connection
could damage the electrical system.

[ECS00672]

7. Start the engine.

8. Disconnect the black (–) jumper cable
from the negative (–) terminal of the dis­charged battery.

9. Disconnect the black (–) jumper cable
from the negative (–) terminal of the bat­tery used to jump-start the engine.

10. Disconnect the red (+) jumper cable from
the positive (+) terminal of the battery
used to jump-start the engine.

11. Disconnect the red (+) jumper cable from
the positive (+) terminal of the discharged
battery.

12. Install the right side cover.

82

Electric starter does not operate or
operates slowly

 Engine stop switch is pushed in: Pull it out.
 Faulty wire connections: Check connec-

tions or ask a Yamaha dealer to check.

 Discharged battery: Charge battery or see

“Discharged battery” above.

Troubleshooting

 Seized engine: Seizure is caused by poor

lubrication, inadequate fuel, or an air leak.
Ask a Yamaha dealer to check.

Engine power is low

 Low coolant temperature indicator light is

flashing: Warm engine up.

 Faulty spark plugs: Clean or replace spark

plugs.

 Improper fuel flow: See “Fuel system”

above.

 Incorrect V-belt clutch settings for altitude

or conditions: Ask a Yamaha dealer to
check.

Engine constantly backfires or mis­fires

 Faulty spark plugs: Replace spark plugs.
 Clogged fuel system: See “Fuel system”

above.

 Malfunctioning T.O.R.S.: See “Electrical

system” above.

Engine overheats

 Insufficient coolant: Add coolant.
 Air in cooling system: Bleed cooling system

or ask a Yamaha dealer to check.

 Leaking coolant: Ask a Yamaha dealer to

check.

Snowmobile does not move

 Malfunctioning V-belt clutch: Ask a

Yamaha dealer to check.

 Drive track does not move: Foreign object

is caught in drive track, or slide runners
have melted to slide metal due to lack of lu­brication.

 Tight, loose, or broken drive chain: Ask a

Yamaha dealer to check.

 Loose or broken engine mount(s): Ask a

Yamaha dealer to check.

V-belt slips or becomes extremely hot

 Oily or dirty V-belt or primary and second-

ary sheave assembly surfaces: Clean.

 Problem with driveline: See “V-belt twists”

above.

Engine does not upshift or downshift
properly or engages harshly

 Worn or damaged V-belt: Replace V-belt or

ask a Yamaha dealer to check.

 Incorrect V-belt clutch settings for altitude

or conditions: Ask a Yamaha dealer to
check.

 Worn or sticking primary sheave assembly:

Ask a Yamaha dealer to check.

 Worn or sticking secondary sheave assem-

bly: Ask a Yamaha dealer to check.

Noise or excessive vibration in drive
chain and sprockets

 Broken V-belt clutch components: Ask a

Yamaha dealer to check.

 Worn or damaged bearings: Ask a Yamaha

dealer to check.

 Worn or damaged V-belt with flat spots:

Replace.

 Worn or damaged idler wheels or shafts:

Ask a Yamaha dealer to check.

 Worn or damaged drive track: Ask a

Yamaha dealer to check.

V-belt twists

 Improper V-belt: Replace with correct V-

belt.

 Incorrect V-belt clutch offset: Ask a

Yamaha dealer to check.

83

Storage

NOTICE

ESU12445

Long-term storage of your snowmobile will
require some preventive procedures to guard
against deterioration.

Engine

Perform the following steps to protect the
cylinders, piston rings, etc., from corrosion.

1. Remove the spark plug caps and spark
plugs.

2. Pour a teaspoonful of engine oil into
each spark plug bore.

3. Install the spark plug caps onto the spark
plugs, and then place the spark plugs on
the cylinder head so that the electrodes
are grounded. (This will limit sparking
during the next step.)

4. Turn the engine over several times with
the starter. (This will coat the cylinder
walls with oil.) WARNING! To prevent

damage or injury from sparking, make
sure to ground the spark plug elec­trodes while turning the engine over.

[EWS00602]

5. Remove the spark plug caps from the
spark plugs, and then install the spark
plugs and the spark plug caps.

Fuel

Add a fuel stabilizer to the fuel tank to help
prevent fuel oxidation and gum and varnish
deposits, and to inhibit corrosion in the fuel
system and injectors. In areas where oxygen­ated fuel (gasohol) is used, consult a Yamaha
dealer.

Chassis

1. Lubricate all specified points with
grease. (See page 76 for detailed infor­mation about the lubrication points.)

2. Loosen the drive track and block up the
chassis so that the track is suspended
above the ground.

3. Clean the exterior of the snowmobile and
apply a rust inhibitor.

4. Store the snowmobile in a dry, well-ven­tilated place with a porous cover placed
over it.

5. Keep the snowmobile on a level surface
during storage or while transporting.

ECS00871

 Improper cleaning can damage plastic

parts such as shroud, covers, wind­shields, headlight lenses, meter lenses,
etc. Use only a soft, clean cloth or
sponge with mild detergent and water to
clean plastic.

 Do not use any harsh chemical products

on plastic parts. Be sure to avoid using
cloths or sponges which have been in
contact with strong or abrasive cleaning
products, solvent or thinner, fuel (gaso­line), rust removers or inhibitors, brake
fluid, antifreeze or electrolyte.

 Do not use high-pressure washers or

steam-jet cleaners since they cause wa­ter seepage and deterioration in the fol­lowing areas: seals (of the slide rail
suspension, front suspension and
brakes), electric components (couplers,
connectors, instruments, switches and
lights), breather hoses and vents.

 For snowmobiles equipped with a wind-

shield: Do not use strong cleaners or
hard sponges as they will cause dulling
or scratching. Some cleaning com­pounds for plastic may leave scratches
on the windshield. Test the product on a
small hidden part of the windshield to
make sure that it does not leave any
marks. If the windshield is scratched,
use a quality plastic polishing com­pound after washing.

84

Battery

TIP

Remove the battery from the snowmobile.
Store it in a cool, dry place that is above 0 °C
(32 °F), but less than 30 °C (90 °F). Check the
condition of the battery once a month, and
charge it as necessary. NOTICE: Always

keep the battery charged. Storing a dis­charged battery can cause permanent
battery damage.

Before installing the battery, have a Yamaha
dealer inspect and fully charge it.

[ECS00692]

Storage

85

Specifications

ESU1246H

Dimensions:

Overall length:

2830 mm (111.4 in) (PZ50RT)
3160 mm (124.4 in) (PZ50MP)
3195 mm (125.8 in) (PZ50MT)
3205 mm (126.2 in) (PZ50XT)

Overall width:

1165 mm (45.9 in) (PZ50MT)
1230 mm (48.4 in) (PZ50RT, PZ50XT)
1260 mm (49.6 in) (PZ50MP)

Overall height:

1190 mm (46.9 in) (PZ50MT_FIN/SWE,
PZ50XT)
1340 mm (52.8 in) (PZ50MT_RUS, PZ50RT)
1380 mm (54.3 in) (PZ50MP)

Weight:

Mass in running order:

251.0 kg (553 lb) (PZ50RT)

263.0 kg (580 lb) (PZ50MT, PZ50XT)

305.0 kg (672 lb) (PZ50MP)

Ski stance:

1080 mm (42.5 in) (PZ50MP, PZ50RT,
PZ50XT)
980 mm (38.6 in) (PZ50MT)

Engine:

Type:

Liquid cooled 4-stroke, 10 valves

Cylinder arrangement:

Inline 2-cylinder

Displacement:

499 cm³

Bore × stroke:

77.0 × 53.6 mm (3.03 × 2.11 in)

Idling speed:

1700–1900 r/min

Engine oil:

Recommended grade:

API service SG type or higher, JASO
standard MA

Recommended brand:

YAMALUBE

Type:

SAE 0W-30

Fuel injection:

ID mark:

8GC3 10

Fuel:

Recommended fuel:

Min 95 RON UNLEADED GASOLINE
ONLY (PZ50MP_RUS, PZ50MT_RUS)
Min 98 RON UNLEADED GASOLINE
ONLY (PZ50MP_FIN/SWE,
PZ50MT_FIN/SWE, PZ50RT, PZ50XT)

Minimum research octane:

95 (PZ50MP_RUS, PZ50MT_RUS)
98 (PZ50MP_FIN/SWE,
PZ50MT_FIN/SWE, PZ50RT, PZ50XT)

Starting system:

Electric starter

Noise level and vibration level:

Noise level (77/311/EEC):

87 dB(A) at 5625 r/min
(PZ50MT_FIN/SWE, PZ50RT, PZ50XT)
88 dB(A) at 5625 r/min
(PZ50MP_FIN/SWE)

Uncertainty of measurement:

3.0 dB(A)

A-weighted sound power level:

100 dB(A) at 5625 r/min
(PZ50MP_FIN/SWE, PZ50MT_FIN/SWE,
PZ50RT, PZ50XT)

Uncertainty of measurement:

3.0 dB(A)

Vibration on seat (EN1032, ISO 5008):

Not exceed 0.5 m/s² (PZ50MP_FIN/SWE,
PZ50MT_FIN/SWE, PZ50RT, PZ50XT)

Uncertainty of measurement:

0.0 m/s² (PZ50MP)

0.1 m/s² (PZ50MT, PZ50RT, PZ50XT)

Vibration on handlebar (EN1032, ISO 5008):

Not exceed 2.5 m/s² (PZ50MP_FIN/SWE,
PZ50MT_FIN/SWE, PZ50RT, PZ50XT)

Uncertainty of measurement:

0.1 m/s² (PZ50MT, PZ50RT, PZ50XT)

0.5 m/s² (PZ50MP)

Chassis:

Drive track:

Material:

Molded rubber, fiberglass-rod reinforced

Type:

Internal drive type

Width:

356 mm (14.0 in) (PZ50MT, PZ50RT,
PZ50XT)
406 mm (16.0 in) (PZ50MP)

Deflection:

30.0–35.0 mm (1.18–1.38 in)

86

Specifications

Length on ground:

1084 mm (42.7 in) (PZ50MT, PZ50XT)
769 mm (30.3 in) (PZ50RT)
985 mm (38.8 in) (PZ50MP)

Rear suspension:

Type:

Slide rail suspension

Track sprocket wheel:

Material:

Polyethylene

Number of teeth:

8 (PZ50MT, PZ50XT)
9 (PZ50MP, PZ50RT)

Transmission:

Clutch type:

Automatic centrifugal engagement

Overall reduction ratio:

8.20–2.05 : 1 (PZ50MT, PZ50XT)

8.66–2.16 : 1 (PZ50RT)

9.50–2.38 : 1 (PZ50MP)

Sheave distance:

267.0–270.0 mm (10.51–10.63 in)

Sheave offset:

14.5–17.5 mm (0.57–0.69 in)
Engagement speed (Subject to change
according to elevation settings.):

2900–3300 r/min (PZ50MP)
3700–4100 r/min (PZ50RT, PZ50XT)

3900–4300 r/min (PZ50MT)
Shift speed [Subject to change according to
elevation settings. Usually achieved after
approximately 800 m (0.5 mi) traveled.]:

10800–11800 r/min
Drive chain type:

Silent chain enclosed in oil bath
Drive chain housing oil:

Type:

SAE 75W or 80W API GL-3 Gear oil

Capacity:

0.25 L (0.26 US qt, 0.22 Imp.qt)

Reverse system:

Yes
Primary reduction ratio:

3.80–0.95 : 1

Secondary reduction ratio:

41/18 (2.28) (PZ50RT)

41/19 (2.16) (PZ50MT, PZ50XT)

45/18 (2.50) (PZ50MP)

Secondary reduction ratio [R]:

2.88 (PZ50MT, PZ50XT)

3.04 (PZ50RT)

3.33 (PZ50MP)

Fuel tank capacity:

26.7 L (7.05 US gal, 5.87 Imp.gal) (PZ50MT,
PZ50RT, PZ50XT)

36.0 L (9.50 US gal, 7.92 Imp.gal) (PZ50MP)

Engine oil quantity:

With oil filter cartridge replacement:

2.6 L (2.78 US qt, 2.31 Imp.qt)

Without oil filter cartridge replacement:

2.4 L (2.59 US qt, 2.16 Imp.qt)

Total amount:

3.0 L (3.17 US qt, 2.64 Imp.qt)

Brake:

Type:

Hydraulic disc type (ventilated disc)

Operation:

Handle lever, left-hand operated

Throttle:

Operation:

Handle lever, right-hand operated

Electrical system:

Ignition system:

TCI

Spark plug:

Manufacturer:

NGK

Model:

CR9EKB

Gap:

0.6–0.7 mm (0.024–0.028 in)

Battery:

Model:

YTX14-BS

Voltage, capacity:

12 V, 12.0 Ah

Ten-hour rate amperage:

1.2 A

Bulb voltage, wattage × quantity:

Headlight:

12 V, 60/55 W × 2

Headlight bulb type:

Halogen bulb

Tail/brake light:

LED

Meter lighting:

LED

Warning light:

LED

87

Specifications

High beam indicator light:

LED
Low coolant temperature indicator light:

LED
Knock control system indicator light:

LED
Drive position indicator light:

LED
Reverse position indicator light:

ESU14251

For EUR only

The figures quoted are emission levels and
are not necessarily safe working levels.
Whilst there is a correlation between the
emission and exposure levels, this cannot be
used reliably to determine whether or not fur­ther precautions are required. Factors that in­fluence the actual level of exposure of work­force include the characteristics of the work
room, the other sources of noise, etc. i.e. the
number of machines and other adjacent pro­cesses, and the length of time for which an
operator is exposed to the noise. Also the
permissible exposure level can vary from
country. This information, however, will en­able the user of the machine to make a better
evaluation of the hazard and risk.

LED

88

ESU14221

Identification number records

Record the frame serial number and engine
serial number (Primary ID) in the spaces pro­vided for assistance when ordering spare
parts from a Yamaha dealer.
Also, record and keep the ID numbers in a
separate place in case the snowmobile is sto­len.

Consumer information

Frame serial number

The frame serial number is the seventeen­digit number stamped on the frame of the
snowmobile.

1. Frame serial number

Engine serial number (Primary ID)

The engine serial number is stamped in the
location as shown.

1. Engine serial number

ESU12492

WARRANTY

If doubt exists as to the cause and cure of a
problem, consult your authorized Yamaha
snowmobile dealer. This is especially impor­tant during the warranty period, as unauthor­ized, haphazard, or improper repairs can void
the warranty. Remember that your authorized
Yamaha dealer has the special tools, tech­niques, and spare parts necessary for proper
repair of your snowmobile.
Always consult your Yamaha dealer if you are
in doubt as to proper specifications and/or
maintenance procedures. Occasionally,
printing errors or production changes will re­sult in incorrect documentation in this manu­al.
Until you are thoroughly familiar with this
model, consult your Yamaha dealer before
attempting any maintenance. Should further
maintenance or service information be de­sired, service manuals can be purchased
from your local authorized Yamaha snowmo­bile dealer.

89

Index

A

Air filter, checking .................................... 59

Auxiliary DC jack (PZ50MP) ..................... 23

B

Backrest (PZ50MP).................................. 26

Battery...................................................... 78

Brake and parking brake.......................... 69

Brake lever ............................................... 24

Break-in.................................................... 40

C

Center shock absorber and rear torsion

springs, adjusting spring preload......... 33

Control rods, adjusting (PZ50MP)............ 35

Coolant temperature warning indicator ... 21

Cooling system ........................................ 64

D

Drive chain housing.................................. 67

Drive guard............................................... 24

Drive indicator light and reverse indicator

light....................................................... 18

Drive select switch................................... 22

Drive track and slide runners ...................73

Drive track, high-profile pattern ............... 76

Drive track life, maximizing...................... 44

Driving...................................................... 45

E

Engine idling speed, adjusting ................. 57

Engine oil and oil filter cartridge............... 60

Engine stop switch................................... 22

F

Fittings and fasteners............................... 78

Fuel .......................................................... 28

Fuel level warning indicator ..................... 20

Fuel meter and grip/thumb warmer level

indicator................................................ 19

Fuse, replacing......................................... 79

G

General maintenance and lubrication

chart...................................................... 50

Grip/thumb warmer adjusting switch....... 23

H

Headlight beam switch ............................ 22

Headlight beams, adjusting ..................... 78

Headlight bulb, replacing ......................... 77

High beam indicator light......................... 17

High-altitude settings............................... 60

I

Identification numbers ............................. 89

K

Knock control system indicator light........18

L

Location of the important labels ................ 1

Low coolant temperature indicator

light ....................................................... 17

Lubrication ............................................... 76

M

Main switch ..............................................15

Multi-function meter unit.......................... 16

O

Oil level/pressure warning indicator......... 20

P

Parking brake lever ..................................24

Part locations ........................................... 13

Passenger grip warmer switch

(PZ50MP).............................................. 25

Periodic maintenance chart for the

emission control system....................... 49

Pre-operation check list...........................37

R

Rear carrier (PZ50MP)..............................27

Recommended equipment ...................... 52

Riding your snowmobile........................... 40

S

Safety information.................................... 10

Self-diagnosis device............................... 21

Shock absorber, rear, adjusting

compression damping force

(PZ50RT)............................................... 34

Shock absorbers, front, adjusting air

pressure (PZ50RT)................................31

Shock absorbers, front, adjusting spring

preload (PZ50XT / PZ50MT /

PZ50MP)............................................... 30

Shroud and covers, removing and

installing................................................ 52

Skis and ski runners.................................71

Spark plugs, checking ............................. 56

Specifications........................................... 86

Starting the engine................................... 39

Steering system .......................................73

Stopping the engine.................................46

Storage..................................................... 84

90

Storage pouch ......................................... 26

Strap (PZ50MT)........................................ 45

Suspension .............................................. 29

T

Throttle lever ............................................ 15

Throttle lever free play, adjusting

(PZ50RT / PZ50XT / PZ50MT) .............. 57

Throttle lever free play, checking

(PZ50MP).............................................. 58

Throttle override system (T.O.R.S.) .......... 15

Throttle override system (T.O.R.S.),

checking ............................................... 58

Tool kit ..................................................... 52

Tow hitch [PZ50MP (RUS)] and tow

hitch bracket [PZ50MP (FIN)(SWE)]...... 28

Transporting............................................. 46

Troubleshooting....................................... 81

Two-up (2-up) adjusting blocks,

adjusting (PZ50MP) .............................. 34

V

Valve clearance........................................ 60

V-belt........................................................ 65

V-belt holder (PZ50MP)............................ 25

Index

91

Printed in Japan

2015.04-0.3×1 CR

Printed on recycled paper