Yamaha PZ50RTA, PZ50GTA, PZ50MTA, PZ50MPA, PZ50VTA User Manual

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

E F

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

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.

PZ50RTA

PZ50GTA

PZ50MTA

PZ50VTA

PZ50MPA

8GK-28199-S4

YAMAHA MOTOR CO., LTD.

PRINTED IN JAPAN

2010.06-0.5×1 CR

PRINTED ON RECYCLED PAPER IMPRIMÉ SUR PAPIER RECYCLÉ

STAMPATO SU CARTA RICICLATA

TRYCKT PÅ ÅTERVUNNET PAPPER

PAINETTU UUSIOPAPERILLE

TRYKKET PÅ RESIRKULERT PAPIR

OWNER’S MANUAL

Read this manual carefully

before operating this vehicle.

PZ50RTA

PZ50GTA

PZ50MTA

PZ50VTA

PZ50MPA

8GK-28199-S4-E0

ESU12548

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∗BA012155- ) RPZ50MP (PZ50MP) (JYE8GR00 RPZ50S (PZ50RT) (JYE8GN00 RPZ50VT (PZ50VT) (JYE8GJ00

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 Directives of EEC

(

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

Title and

(

)

If applicable

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

application

(

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

Title and

(

Make, model

2004/108/EC

of the

essential

following-standards and/or

– – – – – –

BA010199- )

∗

BA009900- )

∗

BA008653- )

∗

)

health

and safety requirements

)

technical

)

Authorized Representative

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

Signature

General Manager RV Engineering Division MC Operations

Date of Issue

Shinya Shimada

17 December, 2009

ESU10131

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.

EWS00670

WARNING

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.

Introduction

PZ50RTA PZ50GTA PZ50MTA PZ50VTA PZ50MPA

OWNER’S MANUAL

1st Edition, June 2010

Any reprinting or unauthorized use

without the written permission of

Yamaha Motor Co., Ltd. is expressly prohibited.

Printed in Japan.

Important manual information

ESU10151

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.

EWS00021

WARNING

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

ECS00011

NOTICE

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

TIP

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

Location of the important labels ..... 1

Safety information .......................... 16

Description ...................................... 18

Control functions ............................ 20

Main switch .................................. 20

Throttle lever ................................ 20

Throttle override system

(T.O.R.S.) .................................. 20

Multi-function meter unit ............... 21

High beam indicator light .............. 22

Low coolant temperature indicator

light ............................................ 22

Knock control system indicator

light ............................................ 23

Drive indicator light and reverse

indicator light ............................. 23

Fuel meter and grip/thumb warmer

level indicator ............................ 23

Fuel level warning indicator .......... 25

Oil level/pressure warning

indicator ..................................... 25

Coolant temperature warning

indicator ..................................... 26

Self-diagnosis device ................... 26

Drive select switch ....................... 27

Engine stop switch ....................... 27

Headlight beam switch

“LIGHTS” ................................... 27

Grip/thumb warmer adjusting

switch ........................................ 28

Auxiliary DC jack

(PZ50VT / PZ50MP) .................. 28

Brake lever ................................... 28

Parking brake lever ...................... 29

Drive guard ................................... 29

V-belt holder

(PZ50VT / PZ50MP) .................. 30

Passenger grip warmer switch

[PZ50VT / PZ50MP (CAN)] ....... 30

Backrest (PZ50VT / PZ50MP) ..... 31

Storage pouch .............................. 31

Rear carrier (PZ50VT /

PZ50MP) ................................... 32

Tow hitch [PZ50VT (CAN) /

PZ50MP (CAN)(RUS)] and tow hitch bracket [PZ50VT (FIN)(SWE) /

PZ50MP (FIN)(SWE)] ............... 32

Fuel .............................................. 33

Suspension .................................. 35

Pre-operation checks ..................... 44

Pre-operation check list ............... 44

Operation ......................................... 46

Starting the engine ....................... 46

Break-in ........................................ 47

Riding your snowmobile ............... 47

Maximizing drive track life ............ 51

Strap (PZ50MT) ........................... 52

Driving .......................................... 52

Stopping the engine ..................... 53

Transporting ................................. 53

Periodic maintenance and

adjustment....................................... 55

Periodic maintenance chart for the

emission control system ........... 55

General maintenance and

lubrication chart ........................ 57

Tool kit ......................................... 59

Removing and installing the

shroud and covers .................... 59

Checking the spark plugs ............. 63

Adjusting the engine idling

speed ........................................ 64

Adjusting the throttle lever free

play (PZ50RT / PZ50GT /

PZ50MT) ................................... 64

Checking the throttle lever free

play (PZ50VT / PZ50MP) .......... 65

Contents

Checking the throttle override

system (T.O.R.S.) ..................... 65

Checking the air filter ................... 66

High-altitude settings .................... 66

Valve clearance ............................ 67

Engine oil and oil filter cartridge ... 67

Cooling system ............................. 70

V-belt ............................................ 72

Drive chain housing ...................... 74

Brake and parking brake .............. 75

Skis and ski runners ..................... 77

Steering system ........................... 78

Drive track and slide runners ....... 79

High-profile pattern drive track ..... 81

Lubrication .................................... 82

Replacing a headlight bulb ........... 83

Adjusting the headlight beams ..... 84

Fittings and fasteners ................... 84

Battery .......................................... 84

Replacing a fuse .......................... 85

Troubleshooting ............................. 87

Storage ............................................ 90

Specifications ................................. 92

Consumer information.................... 95

Identification number records ....... 95

Vehicle Emission Control

Information label

(for CANADA) ............................ 95

WARRANTY.................................. 95

Location of the important labels

ESU12678

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 CANADA

12 11

10 8 7

1 2

356

1420 15 16

18 17

Location of the important labels

1 PZ50RT/PZ50GT/PZ50MT

1 PZ50VT/PZ50MP

2 PZ50MT

NOTICE ATTENTION

8HA-2815M-E0

Location of the important labels

3 PZ50RT/PZ50GT/PZ50MT

4 PZ50RT/PZ50GT/PZ50MT

5 PZ50RT/PZ50GT/PZ50MT 6 PZ50VT/PZ50MP

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

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

NOTICE

8ET-2815K-00

ATTENTION

7 PZ50MT

8GC-2415E-E0

TUNE-UP SPECIFICATIONS

ENGINE

1.SPARK PLUG

2.SPARK PLUG GAP

3.IDLE SPEED

8ET-2815K-10

CR9EKB(NGK)

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

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

1800 ± 100 r/min

8GC-1417E-01

8GC

Location of the important labels

TUNE-UP SPECIFICATIONS

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.

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

250 cm³ (8.5 oz)

GL-3 75W or 80W

13 PZ50MT

SPECIFICATIONS DE LA MISE AU POINT

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

GL-3 75W or 80W 30 ~ 35 mm/100 N (10 kg)

8ES-47578-00

14 PZ50VT/PZ50MP

LOAD LIMIT / CHARGE LIMITE

20kg {44lbs}

8FM-24897-01

88C-77769-00

Location of the important labels

•

506

•

This spark ignition system meets all requirements of the

•

Canadian Interference Causing Equipment Regulations.

Ce système d’allumage par étincelle de véhicule

•

respecte toutes les exigences du Règlement sur le

matériel brouilleur du Canada.

3JK-82377-10

17 PZ50RT/PZ50GT/PZ50MT/PZ50MP 18 PZ50GT/PZ50MT/PZ50MP 19 PZ50MP

19 PZ50RT

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

• Read owner’s manual for instructions.

• Do not incinerate, puncture or open.

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.

WARNING

AVERTISSEMENT

20 PZ50VT/PZ50MP

MAX. TOWING FORCE FORCE DE REMORQUAGE MAX.

1176 N (120 kgf), 264 lbf

MAX. VERTICAL FORCE FORCE VERTICALE MAX.

147 N (15 kgf), 33 lbf

8GS-2817S-E0

18 PZ50RT 19 PZ50GT

8GT-F2259-50

Location of the important labels

For EUROPE

8 7

11 12 13

1 2

Location of the important labels

2 PZ50MT

VIKTIGT MUISTA

3 PZ50RT/PZ50MT 4 PZ50VT/PZ50MP

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

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

8HA-2815M-S0

8GC-2415E-E0

5 PZ50MT

Location of the important labels

TUNE-UP SPECIFICATIONS

ENGINE

1.SPARK PLUG

2.SPARK PLUG GAP

3.IDLE SPEED

CR9EKB(NGK)

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

TUNE-UP SPECIFICATIONS

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.

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

250 cm³ (8.5 oz)

GL-3 75W or 80W

9 PZ50MT

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

1800 ± 100 r/min

8GC-1417E-01

SPECIFICATIONS DE LA MISE AU POINT

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

GL-3 75W or 80W 30 ~ 35 mm/100 N (10 kg)

8ES-47578-00

8GC

10 PZ50VT/PZ50MP 11 PZ50VT/PZ50MP

1176 N

147 N

8HF-2817S-00

MAX.BELASTNING/RASKAIN TAAKKA

20kg {44lbs}

8FM-24897-11

2010

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

8AC-2817L-00

13 PZ50RT

RPZ50S

58.8 kW 251 kg

13 PZ50MT

RPZ50M

58.8 kW 263 kg

13 PZ50VT

RPZ50VT

58.8 kW 304 kg

Location of the important labels

8GN-2156A-10

8GP-2156A-10

8GJ-2156A-10

13 PZ50MP

RPZ50MP

58.8 kW 305 kg

8GR-2156A-10

Location of the important labels

15 PZ50MT/PZ50VT/PZ50MP

15 PZ50RT

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

• Read owner’s manual for instructions.

• Do not incinerate, puncture or open.

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.

WARNING

AVERTISSEMENT

8GT-22259-50

Location of the important labels

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

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.

******

*** kW *** kg

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

****

Model Name

Max. Power

Mass In Running Order

Year of construction

Location of the important labels

For RUSSIA

8 7

11 12 13 14

1 2

Location of the important labels

2 PZ50MT

VIKTIGT MUISTA

3 PZ50MT 4 PZ50MP

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

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

8GR-77761-R1

8HA-2815M-S0

8GC-2415E-E0

5 PZ50MT

8GP-77761-30

Location of the important labels

TUNE-UP SPECIFICATIONS

ENGINE

1.SPARK PLUG

2.SPARK PLUG GAP

3.IDLE SPEED

CR9EKB(NGK)

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

TUNE-UP SPECIFICATIONS

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.

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

250 cm³ (8.5 oz)

GL-3 75W or 80W

9 PZ50MT

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

1800 ± 100 r/min

8GC-1417E-01

SPECIFICATIONS DE LA MISE AU POINT

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

GL-3 75W or 80W 30 ~ 35 mm/100 N (10 kg)

8ES-47578-00

8GC

8HA-77762-R0

10 PZ50MP 11 PZ50MP

MAX.BELASTNING/RASKAIN TAAKKA

1176 N

147 N

8HF-2817S-00

20kg {44lbs}

8FM-24897-11

Location of the important labels

2010

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

8AC-2817L-00

13 PZ50MT

RPZ50M

58.8 kW 263 kg

13 PZ50MP

RPZ50MP

58.8 kW 305 kg

14 15

8GP-2156A-10

8GR-2156A-10

Safety information

ESU10193

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.

● 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, PZ50GT 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 increases the possibility of an accident or equipment damage. See page 44 for a list of pre-operation checks.

● 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.

● 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.

Safety information

● Many surfaces such as ice and hardpacked

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 ac-

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

Description

ESU10261

171819 171819

PZ50GT PZ50VT/PZ50MP

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 (PZ50VT / PZ50MP)

10. Strap (PZ50MT)

11. Passenger grip warmer switch [PZ50VT / PZ50MP (CAN)]

12. Backrest (PZ50VT / PZ50MP)

13. Rear carrier (PZ50VT / PZ50MP)

14. Tail/brake light

15. Tow hitch [PZ50VT (CAN) / PZ50MP (CAN)(RUS)]

16. Tow hitch bracket [PZ50VT (FIN)(SWE) / PZ50MP (FIN)(SWE)]

17. Slide rail suspension

18. Drive track

19. Idle adjusting screw

13 14

15,16171819171819

Description

PZ50RT/PZ50GT/PZ50MT PZ50VT/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

7. Throttle lever

8. Shroud latch (PZ50VT / PZ50MP)

9. Main switch

10. Auxiliary DC jack (PZ50VT / PZ50MP)

TIP

● 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.

Control functions

ESU10292

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.

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.

TIP

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

ESU10312

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.

[ECS00021]

1. Throttle lever

ESU10347

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

EWS00041

WARNING

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 92 for the clutch engagement speed.)

Malfunc-

tion

T. O. R .S .

will be ac-

tivated.

Throttle lever

Throttle valve

T.O. R.S.

Idling Riding

Released Squeezed Released

Closed Open Open

Engine

runs

properly.

Engine

runs

properly.

Control functions

TIP

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”

ESU10396

Multi-function meter unit

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

● a digital speedometer

● an odometer

● a tripmeter (which shows the distance trav-

eled since it was last set to zero)

● an engine speed meter (which shows the

engine speed; not for use while riding)

● warning indicators (which show engine

trouble, coolant temperature, fuel level, oil level, and oil pressure warnings)

● indicator lights (which show high beam, low

coolant temperature, transmission position, and knock control system conditions)

● a warning light (which shows warnings to-

gether with the warning indicators)

● a fuel meter (which shows the fuel remain-

ing in the fuel tank)

● a grip/thumb warmer level indicator (which

shows the grip warmer or the thumb warm-

er level) 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.

2 3

5678

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

Control functions

Odometer, tripmeter, and engine speed meter modes

1. Odometer/tripmeter/engine speed meter

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.

TIP

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

ESU10411

High beam indicator light “”

The high beam indicator light comes on when the high beams of the headlights are switched on. (See page 27 for headlight beam switch operation.)

1. High beam indicator light “”

ESU10473

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.

1. Low coolant temperature indicator light “”

TIP

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.

Control functions

ESU10501

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.

1. Knock control system indicator light “” 1. Drive select switch

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

ECS00031

NOTICE

● 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.

ESU10493

Drive indicator light “” and re- verse 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.

2. Drive indicator light “”

3. Reverse indicator light “”

The snowmobile can be shifted into drive or reverse by pushing the drive select switch. (See page 27 for drive select switch operation.)

ESU10434

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.

TIP

To help prevent knocking, use premium unleaded gasoline only. (See page 33 for more details.)

Control functions

1. Fuel meter and grip/thumb warmer level indicator

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.

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 28 for detailed information.

1. Grip/thumb warmer adjusting switch

1. Fuel level warning indicator “”

2. Warning light “”

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

TIP

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.

1. Grip warmer indicator “”

2. Thumb warmer indicator “”

TIP

● 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.

Control functions

● When the engine is started, the grip/thumb

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

ESU10455

Fuel level warning indicator “”

The fuel level warning indicator and the warning light come on when the fuel level is low. (See page 23 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

ESU13990

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. 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 67 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 “OP-LO” (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.

Control functions

1 2

1. “OP-LO” (oil pressure low)

2. Oil level/pressure warning indicator “”

TIP

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

ESU10513

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 70 for checking procedures.)

1. Coolant temperature warning indicator “”

2. Warning light “”

ECS00041

NOTICE

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

ESU12686

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

[ECS00820]

3 2

1. Warning light “”

2. Engine trouble warning indicator “”

3. Error code display

ESU10545

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.

Control functions

ESU10531

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 46 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.

ESU10661

Headlight beam switch “LIGHTS”

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

1. Drive select switch

2. Drive indicator light “”

3. Reverse indicator light “”

ECS00052

NOTICE

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

1. Headlight beam switch “LIGHTS”

2. High beam “HI”

3. Low beam “LO”

Control functions

ESU10676

Grip/thumb warmer adjusting switch

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

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. See “Fuel meter and grip/thumb warmer level indicator” on page 23 for detailed information.

ESU10696

Auxiliary DC jack (PZ50VT / PZ50MP)

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

TIP

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. 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.

ECS00122

NOTICE

● 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 85 for the specified fuse amperage.)

● Do not use an automotive cigarette light-

er 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)

ESU10551

Brake lever

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

Control functions

1. Brake lever

TIP

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

ECS00060

NOTICE

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.

ESU10581

Parking brake lever

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

1. Parking brake lever

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

ESU14211

Drive guard

EWS00402

WARNING

● 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.

ECS00930

NOTICE

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

moved. Clutch components can be damaged.

● Be careful not to scratch the windshield

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 59 for removal procedures.)

To remove the drive guard

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

Control functions

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.

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.

ESU10770

V-belt holder (PZ50VT / PZ50MP)

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

1. V-belt holder

ECS00190

NOTICE

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

ESU10681

Passenger grip warmer switch [PZ50VT / PZ50MP (CAN)]

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

1. Drive guard

1. Passenger grip warmer switch

2. Off

3. “HI” (high)

4. “LO” (low)

Control functions

ESU10802

Backrest (PZ50VT / PZ50MP)

The backrest is adjustable.

To adjust the backrest angle

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

1. Backrest bolt

2. Adjust the backrest angle to the desired position.

ESU12993

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 / PZ50GT / PZ50MT), or other small items.

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.

3. Tighten the bolts and close the zipper.

Backrest bolt tightening torque:

23 Nm (2.3 m·kgf, 17 ft·lbf)

EWS00131

WARNING

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

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

1. Storage pouch lower strap

2. Storage pouch

3. Bracket fastener

ESU10840

Rear carrier (PZ50VT / PZ50MP)

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

TIP

● 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.

Storing the spare V-belt (PZ50RT / PZ50GT / PZ50MT)

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

TIP

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

1. Rear carrier

Maximum load limit:

20 kg (44 lbs)

EWS00140

WARNING

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

ESU13201

Tow hitch [PZ50VT (CAN) / PZ50MP (CAN)(RUS)] and tow hitch bracket [PZ50VT (FIN)(SWE) / PZ50MP (FIN)(SWE)]

ECS00241

NOTICE

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 [PZ50VT (CAN) / PZ50MP (CAN)(RUS)]

Use the tow hitch within the specified weight limits.

CANADA

Control functions

1. Tow hitch

RUSSIA

1. Tow hitch

Tow weight limit:

120 kgf (265 lbf)

Vertical weight limit:

15 kgf (33 lbf)

Tow hitch bracket [PZ50VT (FIN)(SWE) / 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.

1. Tow hitch bracket

TIP

A tow hitch is not included with the snowmobile. A tow hitch is available at a Yamaha dealer.

Tow weight limit:

120 kgf (265 lbf)

Vertical weight limit:

15 kgf (33 lbf)

ESU10635

Fuel

EWS00071

WARNING

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.

Control functions

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.

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.

EWS00680

WARNING

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 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:

PZ50GT PREMIUM UNLEADED GASOLINE ONLY PZ50MP Min 95 RON UNLEADED GASOLINE ONLY (FIN)(RUS)(SWE) PZ50MP PREMIUM UNLEADED GASOLINE ONLY (CAN) PZ50MT Min 95 RON UNLEADED GASOLINE ONLY (FIN)(RUS)(SWE) PZ50MT PREMIUM UNLEADED GASOLINE ONLY (CAN) PZ50RT Min 95 RON UNLEADED GASOLINE ONLY (FIN)(SWE) PZ50RT PREMIUM UNLEADED GASOLINE ONLY (CAN) PZ50VT Min 95 RON UNLEADED GASOLINE ONLY (FIN)(SWE) PZ50VT PREMIUM UNLEADED GASOLINE ONLY (CAN)

Fuel tank capacity:

PZ50GT 26.7 L (7.05 US gal,

5.87 Imp.gal) PZ50MP 32.9 L (8.69 US gal,

7.24 Imp.gal) (CAN) PZ50MP 36.0 L (9.51 US gal,

7.92 Imp.gal) (FIN)(RUS)(SWE) PZ50MT 26.7 L (7.05 US gal,

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

5.87 Imp.gal) PZ50VT 32.9 L (8.69 US gal,

7.24 Imp.gal) (CAN) PZ50VT 36.0 L (9.51 US gal,

7.92 Imp.gal) (FIN)(SWE)

Control functions

Your Yamaha engine has been designed to use unleaded gasoline with a research octane number of 95 or higher. (For Canada, 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.

ECS00093

NOTICE

● 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.

For CANADA

● Oxygenated fuels (gasohol) containing

a maximum 10% of ethanol (E10) can be used, although richer jetting may be required to prevent engine damage. Consult a Yamaha dealer. Gasohol containing methanol is not recommended.

● Do not use alcohol deicers or water ab-

sorbing additives with oxygenated fuel.

ESU10874

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

EWS00151

WARNING

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.

ESU10905

Adjusting the spring preload of the front shock absorbers (PZ50GT / PZ50MT / PZ50VT / PZ50MP)

EWS00720

WARNING

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 rings [PZ50MT (CAN) / PZ50VT (CAN)] or adjusting nuts [PZ50GT / PZ50MT (FIN)(SWE)(RUS) / PZ50VT (FIN)(SWE) / PZ50MP]. Adjust the spring preload as follows.

PZ50MT (CAN) / PZ50VT (CAN)

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

Control functions

(a)

TIP

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.

(b)

1. Spring preload adjusting ring

Spring preload setting:

Minimum (soft):

Standard:

Maximum (hard):

PZ50GT / PZ50MT (FIN)(SWE)(RUS) / PZ50VT (FIN)(SWE) / PZ50MP

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).

Spring preload setting*:

Minimum (soft):

PZ50GT 168.6 mm (6.64 in) PZ50MT (FIN)(SWE)(RUS) / PZ50VT (FIN)(SWE) / PZ50MP

137.5 mm (5.41 in)

Standard:

PZ50GT 168.6 mm (6.64 in) PZ50MT (FIN)(SWE)(RUS) / PZ50VT (FIN)(SWE) / PZ50MP

138.5 mm (5.45 in)

Maximum (hard):

PZ50GT 178.6 mm (7.03 in) PZ50MT (FIN)(SWE)(RUS) / PZ50VT (FIN)(SWE) / PZ50MP

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.

Tightening torque:

Locknut:

42 Nm (4.2 m·kgf, 30 ft·lbf)

[ECS00860]

(a)

1. Locknut

2. Distance A

3. Spring preload adjusting nut

(b)

ESU12557

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

EWS00730

WARNING

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

EWS00621

WARNING

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

ECS00710

NOTICE

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

Control functions

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.

[ECS00721]

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. Hose connector

TIP

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

Control functions

air pressure, push the black bleed valve button. NOTICE: Do not exceed 1034

kPa (10.3 kgf/cm², 150 psi).

1. Bleed valve button

[ECS00733]

Air pressure range:

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

Recommended air pressure:

483 kPa (4.8 kgf/cm², 70 psi)

TIP

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.

TIP

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.

TIP

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).

ESU10926

Adjusting the damping forces of the front shock absorbers (PZ50GT)

EWS00740

WARNING

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

Compression damping force

The compression damping force of each shock absorber can be adjusted by turning its compression damping force adjusting knob. To increase the compression damping force, turn the adjusting knob in direction (a). To decrease the compression damping force, turn the adjusting knob in direction (b).

6. Remove the hose connector from the air valve.

1. Compression damping force adjusting knob

Control functions

Compression damping setting:

Minimum (soft):

12 click(s) in direction (b)*

Standard:

7 click(s) in direction (b)*

Maximum (hard):

2 click(s) in direction (b)*

* With the adjusting knob fully turned in

direction (a)

Rebound damping force

The rebound damping force of each shock absorber can be adjusted by turning its rebound damping force adjusting knob. To increase the rebound damping force, turn the adjusting knob in direction (a). To decrease the rebound damping force, turn the adjusting knob in direction (b).

TIP

The damping forces will not decrease past the minimum levels even if the adjusting knobs are turned out more than the minimum settings.

ESU10937

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

The spring preload can be adjusted by turning the adjusting ring [PZ50GT / PZ50MT (CAN) / PZ50VT (CAN)] or adjusting nut [PZ50RT / PZ50MT (FIN)(SWE)(RUS) / PZ50VT (FIN)(SWE) / PZ50MP] on the center shock absorber and the adjusters on the rear torsion springs. Adjust the spring preload as follows.

Center shock absorber [PZ50GT / PZ50MT (CAN) / PZ50VT (CAN)]

PZ50GT / PZ50VT (CAN)

1. Rebound damping force adjusting knob

Rebound damping setting:

Minimum (soft):

20 click(s) in direction (b)*

Standard:

12 click(s) in direction (b)*

Maximum (hard):

3 click(s) in direction (b)*

* With the adjusting knob fully turned in

direction (a)

(b)

(a)

1. Spring preload adjusting ring

Control functions

PZ50MT (CAN)

(b)

(a)

1. Spring preload adjusting ring

Spring preload setting:

Minimum (soft):

Standard:

PZ50GT / PZ50VT (CAN) 1 PZ50MT (CAN) 3

Maximum (hard):

Center shock absorber [PZ50RT / PZ50MT (FIN)(SWE)(RUS) / PZ50VT (FIN)(SWE) / PZ50MP]

1. Loosen the locknut.

TIP

Spring preload setting*:

Minimum (soft):

PZ50RT (CAN) / PZ50MT (FIN)(SWE)(RUS) 112.5 mm (4.43 in) PZ50RT (FIN)(SWE) 114.5 mm (4.51 in) PZ50VT (FIN)(SWE) / PZ50MP

111.5 mm (4.39 in)

Standard:

PZ50RT (CAN) / PZ50MT (FIN)(SWE)(RUS) 113.5 mm (4.47 in) PZ50RT (FIN)(SWE) 115.5 mm (4.55 in) PZ50VT (FIN)(SWE) / PZ50MP

112.5 mm (4.43 in)

Maximum (hard):

PZ50RT (CAN) / PZ50MT (FIN)(SWE)(RUS) 123.5 mm (4.86 in) PZ50RT (FIN)(SWE) 125.5 mm (4.94 in) PZ50VT (FIN)(SWE) / PZ50MP

122.5 mm (4.82 in)

* Distance A changes 1.5 mm (0.06 in)

with each full turn of the adjusting nut.

(a)

(b)

1. Spring preload adjusting nut

2. Distance A

3. Locknut

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:

42 Nm (4.2 m·kgf, 30 ft·lbf)

[ECS00860]

Rear torsion springs

EWS00750

WARNING

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

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).

(b)

(a)

Control functions

1. 2-up adjusting block

TIP

● 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.

1. Spring preload adjuster

Spring preload setting:

Minimum (soft):

Standard:

Maximum (hard):

ESU13094

Adjusting the 2-up adjusting blocks (PZ50VT / PZ50MP)

EWS00760

WARNING

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 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.

Control functions

ESU13290

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

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

Do not continue to turn the adjusting knob in direction (a) after it stops. The shock absorber could be damaged and damping force adjustments will not be able to be made. Do not turn the adjusting knob in direction (b) more than 12 click(s). Even if the adjusting knob is continually turned after 12 click(s), there will be no change in the damping force. Be sure to stop the adjusting knob at a position where there is a click.

[ECS00910]

ESU11034

Adjusting the control rods (PZ50VT / PZ50MP)

EWS00770

WARNING

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.

(b) (a)

1. Compression damping force adjusting knob

Compression damping force setting:

Minimum (soft):

12 click(s) in direction (b)*

Standard:

6 click(s) in direction (b)*

Maximum (hard):

1 click(s) in direction (b)*

* With the adjusting knob fully turned in

direction (a)

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 set-

ting, indicated by red paint; otherwise, they could be damaged, which could lead to an accident or injury.

[EWS00173]

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.

[ECS00860]

Control functions

Locknut tightening torque:

25 Nm (2.5 m·kgf, 18 ft·lbf)

Pre-operation checks

ESU11071

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.

EWS00191

WARNING

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.

ESU11081

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 hy-

draulic 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 ele-

ment.

• If necessary, brush off the snow.

• Check for proper placement. 59

• 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.

Pre-operation checks

ITEM CHECKS PAGE

Front shock absorbers (PZ50RT)

Drive track

Slide runners

Steering • Check for excessive free play. 78

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.

27, 27, 83, 84

Operation

ESU13500

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.

EWS00201

WARNING

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

ESU13212

TIP

This model is equipped with:

● an engine oil pressure switch to stop the en-

gine 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.

ESU11303

Starting the engine

1. Apply the parking brake.

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 2

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 immedi-

ately 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.

[ECS00331]

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 22 for detailed information about the indicator light.)

ESU11320

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 fullthrottle 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.

Operation

ECS00340

NOTICE

● 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.

ESU12624

Riding your snowmobile

Getting to know your snowmobile

EWS00211

WARNING

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.

Operation

Pay particular attention to the safety information on page 16. Please read all warning and notice labels on your snowmobile. Also, read the Snowmobiler’s Safety Handbook that is supplied with your snowmobile (for Canada).

Learning to ride your snowmobile

Before you ride, always perform the pre-operation checks listed on page 44. 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 46 to start the engine. Once the engine has warmed up, you are ready to begin riding your snowmobile.

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.

[EWS00690]

Braking

EWS00220

WARNING

● 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.

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.

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

EWS00231

WARNING

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 important 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”.)

Operation

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

EWS00240

WARNING

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.

Operation

Traversing a slope

EWS00251

WARNING

Driving across the face of a slope (“side- hilling”) 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.

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.

[EWS00261]

Ice or icy surface

EWS00270

WARNING

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

● Dirt

Operation

● 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.

EWS00280

WARNING

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 damage

or maladjustment before operating the snowmobile.

● Do not operate the snowmobile if you

find damage to the drive track.

ECS00350

NOTICE

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

ESU11350

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 align-

ment frequently. (See page 79 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.

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 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.

Operation

ESU11360

Strap (PZ50MT)

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

1. Strap

EWS00290

WARNING

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.

ESU11409

Driving

EWS00300

WARNING

Be sure to read the “SAFETY INFORMATION” section on page 16 and the “Riding your snowmobile” section on page 47 carefully before operating the snowmobile.

EWS00322

WARNING

● 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.

TIP

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.

[ECS00851]

Operation

5. Squeeze the brake lever to stop the snowmobile.

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

ESU11411

Stopping the engine

● Turn the main switch to the off position to

stop the engine.

1. Drive select switch

2. Drive indicator light “”

3. Reverse indicator light “”

TIP

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.

TIP

The reverse buzzer beeps while the transmission is in reverse.

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.

1. Off

● Push down the engine stop switch to stop

the engine in an emergency.

ESU11430

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

Operation

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.

Periodic maintenance and adjustment

ESU13181

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.

EWS00341

WARNING

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.

EWS00700

WARNING

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 16 for more information about carbon monoxide.

EWS00790

WARNING

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

ESU11461

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

Seasonally

4000 km

(2500 mi)

(200 hr)

mi)

PAG E

—

ITEM REMARKS

Spark plugs

* Valve clearance

Crankcase breather

system

• Check condition.

• Adjust gap and clean.

• Replace if necessary.

• Check and adjust valve clear-

ance when engine is cold.

• Check breather hose for cracks or damage.

• Replace if necessary.

1 month

or 800 km

(500 mi)

(40 hr)

Every 40000 km (25000

Periodic maintenance and adjustment

INITIAL EVERY

ITEM REMARKS

* Fuel line

* Idle speed • Check and adjust idle speed. 64

* Fuel injection • Adjust synchronization. —

* Exhaust system

• 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)

Seasonally

4000 km

(2500 mi)

(200 hr)

PAG E

—

Periodic maintenance and adjustment

ESU11564

General maintenance and lubrication chart

INITIAL EVERY

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 run-

ners

• 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. 74

• Change. 74

• 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.

1 month

or 800 km

(500 mi)

Whenever operating ele-

Initial at 500 km (300 mi)

and every 800 km (500

See TIP following this

Every 1600 km (1000

Seasonally

4000 km

(40 hr)

vation is changed.

mi) thereafter.

(2500 mi)

(200 hr)

Every

20000 km

(12000 mi)

chart.

mi)

PAG E

—

Periodic maintenance and adjustment

INITIAL EVERY

Seasonally

mi) thereafter.

ITEM REMARKS

* Steering system

* Steering bearings

Suspension compo-

nent

* Drive track

Fittings and fasteners

* Battery

• Check toe-out.

• Adjust if necessary.

• Check bearing assemblies for

looseness.

• 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

4000 km

(2500 mi)

(200 hr)

PAG E

—

TIP

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.

Periodic maintenance and adjustment

ESU13002

Tool kit

The owner’s tool kit is located in the storage pouch. (See page 31 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

ECS00780

NOTICE

Before starting the engine, make sure that the tool kit is securely fastened (PZ50RT / PZ50GT / PZ50MT) and that the storage pouch zipper is completely closed.

ESU11766

Removing and installing the shroud and covers

EWS00091

WARNING

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 / PZ50GT / PZ50MT)

To remove the front cover and air filter case cover

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

1. Latch

2. Front cover

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.

TIP

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.

1. Air filter case cover

2. Fastener

Periodic maintenance and adjustment

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. 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.

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.

1. Holder on the front cover

2. Projection on the air filter case cover

Shroud and air filter case cover (PZ50VT / 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. 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.

Periodic maintenance and adjustment

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 / PZ50GT / PZ50MT)

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

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 / PZ50GT / PZ50MT)

To remove the right upper cover

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

Periodic maintenance and adjustment

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

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.

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 (PZ50VT / 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

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

1. Slot

Periodic maintenance and adjustment

1. Grommet

2. Close the shroud.

ECS00372

NOTICE

● 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.

ESU11784

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 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 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

EWS00710

WARNING

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)

1 1

1. Spark plug gap

2. Spark plug reach

Periodic maintenance and adjustment

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)

ECS00382

NOTICE

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

ESU11812

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 21 for details.)

4. Remove the 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.

ESU13663

Adjusting the throttle lever free play (PZ50RT / PZ50GT / 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).

1. Rubber cap

(a)

(b)

1. Locknut

2. Throttle lever free play adjusting nut

3. Rubber cover

4. Throttle lever free play

Periodic maintenance and adjustment

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.

ESU11851

Checking the throttle lever free play (PZ50VT / 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.

ESU11863

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

EWS00352

WARNING

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.

● Do not rev the engine to the point that

the clutch engages.

TIP

Refer to the “Starting the engine” section on page 46.

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.

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

1. Start the engine.

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 92 for the clutch engagement speed.)

WARNING! If the engine speed does

not decrease to less than the clutch

Periodic maintenance and adjustment

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.

ESU11894

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.

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

2. Remove the front cover (PZ50RT / PZ50GT / PZ50MT) or open the shroud (PZ50VT / PZ50MP), and then remove the air filter case cover. (See page 59 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.

[EWS00362]

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 / PZ50GT / PZ50MT) or close the shroud (PZ50VT / PZ50MP).

ESU11931

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 con-

Periodic maintenance and adjustment

sult 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.

ESU11950

[ECS00431]

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.

ESU11988

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.

EWS00370

WARNING

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.

ECS00441

NOTICE

● 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 car-

tridge.

To check the engine oil level

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

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

TIP

● 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 / PZ50GT / PZ50MT), or open the shroud and remove the right upper cover and the right side cover (PZ50VT / PZ50MP). (See page 59 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.

[ECS00452]

Periodic maintenance and adjustment

1. Oil level gauge coupler

2. Oil filler cap

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.

1. Oil filler cap

2. Dipstick

TIP

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 92 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

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

[ECS00462]

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 / PZ50GT / PZ50MT), or install the right side cover and the right upper cover, and then close the shroud (PZ50VT / 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 / PZ50GT / PZ50MT), or open the shroud and remove the right upper cover and the right side cover (PZ50VT / PZ50MP). (See page 59 for the procedures.)

4. Remove the bottom panel by removing the bolts.

Periodic maintenance and adjustment

1. Bottom panel

2. Bolt

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

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

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. 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. Oil level gauge coupler

2. Oil filler cap

1. Engine oil drain bolt (crankcase)

2. Gasket

TIP

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.

Periodic maintenance and adjustment

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 only the recommended oil. (See page

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

1. “H” level mark

2. “L” level mark

[ECS00462]

Recommended engine oil:

See page 92.

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)

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 / PZ50GT / PZ50MT), or install the right side cover and the right upper cover, and then close the shroud (PZ50VT / PZ50MP). 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.

ESU12047

[ECS00471]

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.

EWS00380

WARNING

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.

Periodic maintenance and adjustment

When the hissing sound has stopped, press down on the cap while turning counterclockwise and remove it.

1. Coolant reservoir cap

To check the coolant level

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

2. Remove the top cover (PZ50RT / PZ50GT / PZ50MT) or open the shroud (PZ50VT / PZ50MP), and then remove the right upper cover. (See page 59 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.

[ECS00492]

1. “COLD LEVEL” mark

4. Install the right upper cover, and then install the top cover (PZ50RT / PZ50GT / PZ50MT) or close the shroud (PZ50VT / 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.

ECS00500

NOTICE

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 / PZ50GT / PZ50MT) or open the shroud (PZ50VT / PZ50MP), and then remove the right upper cover. (See page 59 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.

Periodic maintenance and adjustment

TIP

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 / PZ50GT / PZ50MT) or close the shroud (PZ50VT /

1. “COLD LEVEL” mark

2. Coolant reservoir cap

Recommended antifreeze:

High-quality ethylene glycol antifreeze containing corrosion inhibitors

Antifreeze and water mixing ratio:

3:2

Total amount:

PZ50GT 3.60 L (3.81 US qt,

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

3.26 Imp.qt) PZ50MT 3.60 L (3.81 US qt,

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

3.17 Imp.qt) PZ50VT 3.70 L (3.91 US qt,

3.26 Imp.qt)

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.

PZ50MP).

ESU12085

V-belt

EWS00402

WARNING

● 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.

ECS00830

NOTICE

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 / PZ50GT / PZ50MT), or open the shroud and remove the left upper cover and the left side cover (PZ50VT / PZ50MP). (See page 59 for the procedures.)

2. Remove the drive guard.

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

Periodic maintenance and adjustment

1. V-belt wear limit

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.

5. Install the left side cover (PZ50RT / PZ50GT / PZ50MT), or install the left side cover and the left upper cover, and then close the shroud (PZ50VT / PZ50MP).

To replace the V-belt

EWS00411

WARNING

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.

ECS00520

NOTICE

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 / PZ50GT / PZ50MT), or open the shroud and remove the left upper cover and the left side cover (PZ50VT / PZ50MP). (See page 59 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.

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.

Periodic maintenance and adjustment

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 / PZ50GT / PZ50MT), or install the left side cover and the left upper cover, and then close the shroud (PZ50VT / PZ50MP).

ESU12126

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 59 for removal procedures.)

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

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

Recommended drive chain oil:

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

[ECS00531]

Periodic maintenance and adjustment

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

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 59 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.

1. Locknut

2. Chain tension adjusting bolt

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.

ESU13431

Brake and parking brake

EWS00440

WARNING

● 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.

ECS00060

NOTICE

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.)

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 59 for removal procedures.)

Periodic maintenance and adjustment

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 59 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.

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 59 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

Parking brake cable length:

43.5–46.5 mm (1.713–1.831 in)

1. Parking brake pad wear limit

Parking brake pad wear limit:

1.2 mm (0.047 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.

Periodic maintenance and adjustment

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

EWS00460

WARNING

Be careful that water does not enter the master cylinder when refilling. Water will significantly lower the boiling point of the fluid and may result in vapor lock. If the brake fluid level goes down, consult a Yamaha dealer.

ECS00550

NOTICE

Brake fluid may deteriorate painted surfaces or plastic parts. Never spill any fluid. If any is spilled, clean it up immediately.

1. Lower level

Specified brake fluid:

DOT 4

Changing the brake fluid

EWS00471

WARNING

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

ESU12144

Skis and ski runners

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

Place the snowmobile on a level surface and apply the parking brake. Check that the brake fluid is above the lower level and replenish when necessary.

1. Ski runner wear limit

Periodic maintenance and adjustment

1. Ski wear limit

2. Ski runner

1. Distance A

2. Distance B

Ski runner wear limit:

6.0 mm (0.24 in)

Ski wear limit:

PZ50GT 13 mm (0.5 in) PZ50MP 24 mm (0.9 in) PZ50MT 24 mm (0.9 in) PZ50RT 13 mm (0.5 in) PZ50VT 13 mm (0.5 in) (CAN) PZ50VT 24 mm (0.9 in) (FIN)(SWE)

ECS00560

NOTICE

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.

To align 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.

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

0.0–15.0 mm (0.00–0.59 in)

TIP

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

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

ESU12152

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.

Periodic maintenance and adjustment

ESU12176

Drive track and slide runners

Drive track

EWS00481

WARNING

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.

● 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.

Adjust or replace if necessary. (See the following section for more details.)

Checking the drive track alignment

1. Lift the rear of the snowmobile onto a suit-

able 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.

Checking the drive track

EWS00490

WARNING

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.

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).

Periodic maintenance and adjustment

1. Spring scale

TIP

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

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 deflection

1. Loosen the rear axle nut.

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.

Drive track

alignment

Left adjusting nut

Right adjusting nut

1. Left adjusting nut

2. Right adjusting nut

Shifted to

right

Turn out Turn in

Tur n i n Tu rn o ut

Shifted to left

Periodic maintenance and adjustment

Shifted to right

1. Forward

2. Gap

3. Slide runner

4. Drive track

5. Slide metal

Shifted to left

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.

1. Slide runner

2. Wear limit height

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

[ECS00592]

More than

specified

Turn in Turn out

Less than

specified

Slide runner wear limit height:

10.5 mm (0.41 in)

ECS00350

NOTICE

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

ESU12181

High-profile pattern drive track

(PZ50MT)

This snowmobile is originally equipped with a 51 mm (2.0 in) high-profile pattern drive track specifically for use in deep snow riding conditions.

Periodic maintenance and adjustment

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.

ECS00610

NOTICE

● Only use in deep snow riding condi-

tions.

● 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.

ESU12198

Lubrication

Lubricate the following points with the specified grease.

EWS00511

WARNING

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.

Lubricants:

Brake lever:

Silicone grease

Other lubrication points:

Low-temperature grease

1. Lubrication point

1. Throttle cable end

PZ50RT / PZ50GT / PZ50MT

TIP

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

1. Grease nipple

Periodic maintenance and adjustment

PZ50VT / PZ50MP

1. Grease nipple

ESU12242

Replacing a headlight bulb

1. Remove the top cover (PZ50RT / PZ50GT / PZ50MT) or open the shroud (PZ50VT / PZ50MP). (See page 59 for removal procedures.)

2. Disconnect the headlight coupler.

3. Remove the bulb holder cover.

PZ50RT / PZ50GT / PZ50MT

PZ50VT / PZ50MP

1. Headlight coupler

2. Bulb holder cover

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

1. Headlight coupler

2. Bulb holder cover

1. Bulb holder

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.

[ECS00621]

Periodic maintenance and adjustment

ESU12290

Fittings and fasteners

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

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 / PZ50GT / PZ50MT) or close the shroud (PZ50VT / PZ50MP).

ESU12280

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

ESU13890

Battery

The battery is located behind the right side cover. (See page 59 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.

EWS00540

WARNING

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. 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.

1. Headlight beam adjusting screw

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

Periodic maintenance and adjustment

tends to discharge more quickly if the snowmobile is equipped with electrical accessories.

EWS00610

WARNING

● 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.

ECS00843

NOTICE

● 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.

ESU12354

Replacing a fuse

EWS00550

WARNING

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

ECS00631

NOTICE

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

59 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.

1. Main fuse

2. Spare fuse

3. Fuel injection system fuse

Periodic maintenance and adjustment

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

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 in-

stalling the bolt.

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

5. Install the right side cover.

TIP

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

ESU12397

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.

[EWS00561]

Troubleshooting

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.

EWS00580

WARNING

● Connect the jumper cables only to the

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

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 59 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. NOTICE: 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.

[ECS00671]

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.

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.

V-belt twists

● Improper V-belt: Replace with correct V-

belt.

● Incorrect V-belt clutch offset: 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: Re-

place.

● Worn or damaged idler wheels or shafts:

Ask a Yamaha dealer to check.

● Worn or damaged drive track: Ask a

Yamaha dealer to check.

Storage

ESU12443

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.

[EWS00601]

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 82 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. The snowmobile must remain in an upright position when stored, transported, or operated.

ECS00870

NOTICE

● 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.

Battery

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.

[ECS00691]

TIP

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

Storage

Specifications

ESU1246B

Dimensions:

Overall length:

PZ50GT 2820 mm (111.0 in) PZ50MP 3160 mm (124.4 in) PZ50MT 3195 mm (125.8 in) PZ50RT 2820 mm (111.0 in) PZ50VT 3150 mm (124.0 in) (CAN) PZ50VT 3160 mm (124.4 in) (FIN)(SWE)

Overall width:

PZ50GT 1215 mm (47.8 in) PZ50MP 1265 mm (49.8 in) PZ50MT 1165 mm (45.9 in) PZ50RT 1215 mm (47.8 in) PZ50VT 1215 mm (47.8 in) (CAN) PZ50VT 1265 mm (49.8 in) (FIN)(SWE)

Overall height:

PZ50GT 1340 mm (52.8 in) PZ50MP 1380 mm (54.3 in) PZ50MT 1190 mm (46.9 in) PZ50RT 1190 mm (46.9 in) PZ50VT 1380 mm (54.3 in)

Weight:

With oil and fuel:

PZ50GT 251.0 kg (553 lb) PZ50MP 304.0 kg (670 lb) (CAN) PZ50MT 263.0 kg (580 lb) (CAN) PZ50RT 251.0 kg (553 lb) (CAN) PZ50VT 303.0 kg (668 lb) (CAN)

Mass in running order:

PZ50MP 305.0 kg (672 lb) (FIN)(RUS)(SWE) PZ50MT 263.0 kg (580 lb) (FIN)(RUS)(SWE) PZ50RT 251.0 kg (553 lb) (FIN)(SWE) PZ50VT 304.0 kg (670 lb) (FIN)(SWE)

Ski stance:

PZ50GT 1080 mm (42.5 in) PZ50MP 1080 mm (42.5 in) PZ50MT 980 mm (38.6 in) PZ50RT 1080 mm (42.5 in) PZ50VT 1080 mm (42.5 in)

Engine:

Type:

Liquid cooled 4-stroke, 10 valves

Cylinder arrangement:

Backward-inclined parallel 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:

Type:

Minimum pump octane (R+M)/2:

PZ50GT 91 PZ50MP 91 (CAN) PZ50MT 91 (CAN) PZ50RT 91 (CAN) PZ50VT 91 (CAN)

Minimum research octane:

PZ50MP 95 (FIN)(RUS)(SWE) PZ50MT 95 (FIN)(RUS)(SWE) PZ50RT 95 (FIN)(SWE) PZ50VT 95 (FIN)(SWE)

Starting system:

Electric starter

Yamaha PZ50RTA, PZ50GTA, PZ50MTA, PZ50MPA, PZ50VTA User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Introduction

Important manual information

Contents

Location of the important labels

Safety information

Description

Control functions

Main switch

Throttle lever

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

Multi-function meter unit

High beam indicator light “”

Knock control system indicator light “”

Fuel meter and grip/thumb warmer level indicator

Fuel level warning indicator “”

Oil level/pressure warning indicator “”

Coolant temperature warning indicator “”

Self-diagnosis device

Drive select switch

Engine stop switch “”

Headlight beam switch “LIGHTS”

Grip/thumb warmer adjusting switch

Brake lever

Parking brake lever

Drive guard

Storage pouch

Tow hitch [PZ50VT (CAN) / PZ50MP (CAN)(RUS)] and tow hitch bracket [PZ50VT (FIN)(SWE) / PZ50MP (FIN)(SWE)]

Fuel

Suspension

Pre-operation checks

Pre-operation check list

Operation

Starting the engine

Break-in

Riding your snowmobile

Maximizing drive track life

Strap (PZ50MT)

Driving

Stopping the engine

Transporting

Periodic maintenance and adjustment

Periodic maintenance chart for the emission control system

General maintenance and lubrication chart

Tool kit

Removing and installing the shroud and covers

Checking the spark plugs

Adjusting the engine idling speed

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

Checking the air filter

High-altitude settings

Valve clearance

Engine oil and oil filter cartridge

Cooling system

V-belt

Drive chain housing

Brake and parking brake

Skis and ski runners

Steering system

Drive track and slide runners

High-profile pattern drive track

Lubrication

Replacing a headlight bulb

Fittings and fasteners

Adjusting the headlight beams

Battery

Replacing a fuse

Troubleshooting

Storage

Specifications