Yamaha VK10F User Manual

Page 1
E F
I
S
SF
N
E F
S
SF
N
Read this manual carefully before operating this vehicle. Il convient de lire attentivement ce manuel avant la première utilisation du véhicule.
I
Leggere attentamente questo manuale prima di utilizzare questo veicolo. Läs den här instruktionsboken noga innan snöskotern används. Lue tämä käsikirja huolellisesti ennen moottorikelkan käyttöä. Les denne håndboken nøye før du tar kjøretøyet i bruk.
VK10F
8JE-28199-S2
Page 2
Original instructions
Notice originale
Istruzioni originali
Bruksanvisning i original
Alkuperäiset ohjeet
Opprinnelige instruksjoner
PRINTED IN JAPAN
2014.04-0.3×1 CR
PRINTED ON RECYCLED PAPER
IMPRIMÉ SUR PAPIER RECYCLÉ
STAMPATO SU CARTA RICICLATA
TRYCKT PÅ ÅTERVUNNET PAPPER
PAINETTU UUSIOPAPERILLE
TRYKKET PÅ RESIRKULERT PAPIR
Page 3
Read this manual carefully
before operating this vehicle.
OWNER’S MANUAL
VK10F
8JE-28199-S2-E0
Page 4
ESU1010C
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
VK10D (VK10) (JYE8KB00∗FA000001
to which this declaration applies, conforms to the essential health and safety requirements of Directive 2006/42/EC
(
If applicable
and to the other relevant Directive of EEC
(
To effect correct application of the essential health and safety requirements stated in the Directives of EEC, the following-standards and/or technical specifications were consulted:
If applicable
(
)
(
Title and
/
or number and date of issue of the other Directives of EEC
)
Title and
/
or number and date of issue of standards and/or specifications
(
Make, model
2004/108/EC
– – – – – –
)
)
)
)
Authorized Representative
YAMAHA MO TOR EUROPE N.V. Koolhovenlaan 101, 1119 NC Schiphol-Rijk, The Netherlands
Signature
General Manager Engineering Div., R V Business Unit Business Development Operations YAMAHA MO TOR CO., LTD .
Date of Issue
Akihiro Tsuzuki
10 October, 2013
Page 5
ESU10132
WARNING
Congratulations on your purchase of a Yamaha snowmobile. This model is the result of Yamaha’s vast experience in the produc­tion of fine sporting and touring snowmo­biles. It represents the high degree of craftsmanship and reliability that have made Yamaha a leader in these fields. This manual will give you an understanding of the operation, inspection, and basic mainte­nance of this snowmobile. If you have any questions concerning the operation or main­tenance of your snowmobile, please consult a Yamaha dealer. Yamaha continually seeks advancements in product design and quality. Therefore, while this manual contains the most current prod­uct information available at the time of print­ing, there may be minor discrepancies between your snowmobile and this manual. If there is any question concerning this manual, please consult a Yamaha dealer.
EWS00671

Introduction

VK10F
OWNER’S MANUAL
©2014 by Yamaha Motor Co., Ltd.
1st Edition, March 2014
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Mo t o r C o . , L t d . is expressly prohibited.
Printed in Japan.
Please read this manual carefully before operating this snowmobile. Do not at­tempt to operate this snowmobile until you have attained adequate knowledge of its controls and operating features. Regular inspections and careful mainte­nance, along with good operating tech­niques, will help ensure that you safely enjoy the capabilities and reliability of this snowmobile.
Page 6

Important manual information

WARNING
NOTICE
TIP
ESU10152
Particularly important information is distin­guished in this manual by the following nota­tions.
This is the safety alert symbol. It is used to alert you to potential personal injury haz­ards. Obey all safety messages that follow this symbol to avoid possible injury or death.
EWS00022
A WARNING indicates a hazardous situa­tion which, if not avoided, could result in death or serious injury.
ECS00012
A NOTICE indicates special precautions that must be taken to avoid damage to the snowmobile or other property.
A TIP provides key information to make pro­cedures easier or clearer.
Page 7

Contents

Location of the important labels......1
Safety information ............................. 9
Description....................................... 11
Control functions............................. 13
Main switch ................................... 13
Starter (choke) lever ...................... 13
Throttle lever ................................. 13
Throttle override system
(T.O.R.S.).................................... 14
Multi-function meter unit............... 14
High beam indicator light ............. 15
Low coolant temperature indicator
light ........................................... 15
Fuel meter and grip/thumb warmer
level indicator ............................. 16
Fuel level warning indicator ......... 17
Oil level warning indicator ............ 18
Coolant temperature warning
indicator .................................... 18
Self-diagnosis device .................... 18
Engine stop switch ....................... 19
Headlight beam switch
“LIGHTS” ................................... 19
Grip/thumb warmer adjusting
switch......................................... 19
Auxiliary DC jack ........................... 20
Brake lever .................................... 20
Parking brake lever ....................... 21
Shift lever ...................................... 21
Drive guard.................................... 22
V-belt holders................................ 22
Carburetor coolant shut-off
lever............................................ 22
Louvers ......................................... 23
Passenger grip warmer switch...... 23
Storage areas................................ 23
Tow hitch bracket ......................... 25
Fuel ............................................... 26
Suspension ................................... 27
Pre-operation checks ..................... 30
Pre-operation check list................ 30
Operation ......................................... 32
Starting the engine........................ 32
Break-in ........................................ 33
Riding your snowmobile ............... 33
Maximizing drive track life ............ 37
Strap ............................................. 38
Driving........................................... 38
Stopping the engine ..................... 39
Transporting.................................. 39
Periodic maintenance and
adjustment....................................... 41
Periodic maintenance chart for the
emission control system............ 42
General maintenance and
lubrication chart ......................... 43
Tool kit .......................................... 45
Recommended equipment ........... 45
Opening and closing the shroud
and removing and installing the
right side cover .......................... 45
Checking the spark plugs ............. 46
Adjusting the engine idling
speed ......................................... 47
Adjusting the throttle lever free
play ............................................ 47
Checking the throttle override
system (T.O.R.S.) ....................... 48
Checking the air filter .................... 49
Carburetors................................... 50
High-altitude settings.................... 50
Valve clearance............................. 50
Engine oil and oil filter cartridge ... 50
Cooling system ............................. 55
V-belt ............................................ 56
Drive chain housing ...................... 59
Brake and parking brake .............. 60
Extrovert drive sprocket .............. 63
Skis and ski runners ..................... 63
Page 8
Contents
Steering system ............................ 65
Drive track and slide runners ........ 66
Lubrication .................................... 69
Replacing a headlight bulb ........... 70
Adjusting the headlight beams ..... 71
Fittings and fasteners.................... 71
Battery........................................... 71
Replacing a fuse ........................... 72
Troubleshooting .............................. 75
Storage............................................. 79
Specifications .................................. 81
Consumer information.................... 83
Identification number records ....... 83
WARRANTY .................................. 83
Index ................................................. 84
Page 9

Location of the important labels

8
7
12 13
14
1
2
6
5
3
4
10 11
15
9
ESU1267A
Read and understand all of the labels on your vehicle. They contain important information for safe and proper operation of your vehicle. Never remove any labels from your vehicle. If a label becomes difficult to read or comes off, a replacement label is available from your Yamaha dealer.
For EUROPE
1
Page 10
Location of the important labels
DRIVE
1. CHAIN CASE OIL Q’TY
2. CHAIN CASE OIL TYPE
3. TRACK TENSION
* FOR MORE INFO: SEE SERVICE MANUAL FOR THIS
MODEL.
* SPECIFICATIONS SUBJECT TO CHANGE WITHOUT
NOTICE.
ENTRAÎNEMENT
1. CAPACITÉ D’HUILE DU CARTER DE CHAÎNE
2. TYPE D’HUILE DU CARTER DE CHAÎNE
3. FLÈCHE DE LA CHENILLE * POUR PLUS DE DÉTAIL: VOIR LE MANUEL D’ATELIER
POUR CE MODÈLE.
* LES CARACTÉRISTIQUE TECHNIQUES SONT
SUSCEPTIBLES DE CHANGER SANS NOTIFICATION PRÉALABLE.
350 cm³ (11.8 oz)
GL-3 75W or 80W
30 ~ 35 mm (1.18 ~ 1.38 in)/100 N (10 kg, 22 lb)
350 cm³
GL-3 75W or 80W
8JD-47578-00
30 ~ 35 mm/100 N (10 kg)
TUNE-UP SPECIFICATIONS
SPECIFICAT ION S DE LA MIS E AU P OINT
TUNE-UP SPECIFICATIONS
ENGINE
1.SPARK PLUG
2.SPARK PLUG GAP
3.IDLE SPEED
SPECIFICAT IONS DE LA MIS E AU P OINT
MOTEUR
1.TYPE DE BOUGIE
2.ECARTEMENT DES ÉLECTRODES
3.RÉGIME DE RALENTI
CR8E(NGK)
0.7 ~ 0.8 mm (0.028 ~ 0.031 in) 1400 ± 100 r/min
CR8E(NGK)
0.7 ~ 0.8 mm
1400 ± 100 r/min
8ES
8ES-1417E-00
8GS-77763-S0
1
2
3
4
56
2
Page 11
Location of the important labels
5kg {11lbs}
MAX.BELASTNING/RASKAIN T AAKKA
8FN-24897-10
20kg {44lbs}
MAX.BELASTNING/RASKAIN T AAKKA
8FM-24897-11
<
1176 N
<
147 N
8HF-2817S-00
MUISTA VIKTIGT
Öljyn puute voi vaurioittaa moottoria vakavasti, jos kampikammion huohotinletkuja ei ole kiinnitetty oikein. T arkista, että letkut ja kiristimet on asennettu kunnolla akun huollon tai
imakammion irrotuksen
jälkeen. Katso lisätietoja
Huolto-ohjeesta.
Allvarlig motorskada kan uppstå vid oljeförlust om vevhusventilatorns slangar inte monterats korrekt. Kontrollera att slangar och kiämmor är korrekt monterade efter batteriservice eller avlägsnande av luftlådan. Se verkstadshandboken.
8GS-2815J-S0
8FA-S0
8FA-2389C-S0
8KB-2156A-00
VK10D
84.7 kW 388 kg
8AC-2817L-00
YAMAHA MOT OR CO., LTD. 2500 SHINGAI, IWATA, JAPAN
2014
4AA-22259-40
7
89
10 11
12
14
13
15
3
Page 12
Location of the important labels
******
*** kW *** kg
1
23
Y AMAHA MOTOR CO., LTD. 2500 SHINGAI, IWAT A, J APAN
****
1
Read the Owner’s manual.
This unit contains high-pressure nitrogen gas. Mishandling can cause an explosion. Do not incinerate, puncture or open.
This pictogram shows the sled hitch tow weight limit (combined weight of the sled and all cargo in the sled). Overloading can cause loss of control. Loss of control can result in severe injury or death.
This pictogram shows the sled hitch tongue weight limit (weight on the sled tongue). Overloading can cause loss of control. Loss of control can result in severe injury or death.
1
2
3
Model Name Max. Power Mass In Running Order
1
Year of construction
Familiarize yourself with the following pictograms and read the explanatory text.
4
Page 13
For RUSSIA
9
8
1211 13 14 15
16
1
2
7
5
3
4
6
17
10
Location of the important labels
5
Page 14
Location of the important labels
DRIVE
1. CHAIN CASE OIL Q’TY
2. CHAIN CASE OIL TYPE
3. TRACK TENSION
* FOR MORE INFO: SEE SERVICE MANUAL FOR THIS MODEL. * SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE.
ENTRAÎNEMENT
1. CAPACITÉ D’HUILE DU CARTER DE CHAÎNE
2. TYPE D’HUILE DU CARTER DE CHAÎNE
3. FLÈCHE DE LA CHENILLE * POUR PLUS DE DÉTAIL: VOIR LE MANUEL D’ATELIER
POUR CE MODÈLE. * LES CARACTÉRISTIQUE TECHNIQUES SONT SUSCEPTIBLES DE CHANGER SANS NOTIFICATION PRÉALABLE.
350 cm³ (11.8 oz)
GL-3 75W or 80W
30 ~ 35 mm (1.18 ~ 1.38 in)/100 N (10 kg, 22 lb)
350 cm³
GL-3 75W or 80W
8JD-47578-00
30 ~ 35 mm/100 N (10 kg)
TUNE-UP SPECIFICATIONS
SPECIFIC ATIO NS DE LA M ISE AU POINT
TUNE-UP SPECIFICATIONS
ENGINE
1.SPARK PLUG
2.SPARK PLUG GAP
3.IDLE SPEED
SPECIFICA TIO NS DE LA M ISE AU P OINT
MOTEUR
1.TYPE DE BOUGIE
2.ECARTEMENT DES ÉLECTRODES
3.RÉGIME DE RALENTI
CR8E(NGK)
0.7 ~ 0.8 mm (0.028 ~ 0.031 in) 1400 ± 100 r/min
CR8E(NGK)
0.7 ~ 0.8 mm
1400 ± 100 r/min
8ES
8ES-1417E-00
8GS-77761-R1
1
2
3
4
6
Page 15
Location of the important labels
8GS-77763-S0
5kg {11lbs}
MAX.BELASTNING/RASKAIN T AAKKA
8FN-24897-10
20kg {44lbs}
MAX.BELASTNING/RASKAIN T AAKKA
8FM-24897-11
8FN-77761-R1
<
1176 N
<
147 N
8HF-2817S-00
8JE-77764-R0
56
7
8
910
7
Page 16
Location of the important labels
MUISTA VIKTIGT
Öljyn puute voi vaurioittaa moottoria vakavasti, jos kampikammion huohotinletkuja ei ole kiinnitetty oikein. T arkista, että letkut ja kiristimet on asennettu kunnolla akun huollon tai
imakammion irrotuksen
jälkeen. Katso lisätietoja
Huolto-ohjeesta.
Allvarlig motorskada kan uppstå vid oljeförlust om vevhusventilatorns slangar inte monterats korrekt. Kontrollera att slangar och kiämmor är korrekt monterade efter batteriservice eller avlägsnande av luftlådan. Se verkstadshandboken.
8GS-2815J-S0
8FA-S0
8FA-2389C-S0
8KB-2156A-00
VK10D
84.7 kW 388 kg
8AC-2817L-00
YAMAHA MOT OR CO., LTD. 2500 SHINGAI, IWATA, JAPAN
2014
8HN-2811S-00
11 12
13
14
16
15
17
8
Page 17

Safety information

ESU10204
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.
Do not operate the snowmobile after or
while drinking alcohol or taking drugs. Your ability to operate the snowmobile is re­duced by the influence of alcohol or drugs.
Prepare your snowmobile
Perform the pre-operation checks each
time you use the vehicle to make sure it is in safe operating condition. Failure to in­spect or maintain the vehicle properly in-
creases the possibility of an accident or equipment damage. See page 30 for a list of pre-operation checks.
Apply the parking brake before starting the
engine. Never drive the snowmobile with the parking brake applied. This may over­heat the brake disc and reduce braking ability.
While using your snowmobile
This snowmobile was not manufactured for
use on public streets, roads, or highways. Such use is prohibited by law, and you could collide with another vehicle.
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.
Many surfaces such as ice and hard-
packed snow require much longer stop­ping distances. Be alert, plan ahead and begin decelerating early. The best braking method on most surfaces is to release the throttle and apply the brake gently—not suddenly.
Avoid carbon monoxide poisoning
All engine exhaust contains carbon monox­ide, a deadly gas. Breathing carbon monox­ide can cause headaches, dizziness, drowsiness, nausea, confusion, and eventu-
9
Page 18
Safety information
ally death. Carbon monoxide is a colorless, odorless, tasteless gas which may be present even if you do not see or smell any engine ex­haust. Deadly levels of carbon monoxide can collect rapidly and you can quickly be over­come and be unable to save yourself. Also, deadly levels of carbon monoxide can linger for hours or days in enclosed or poorly-venti­lated areas. If you experience any symptoms of carbon monoxide poisoning, leave the area immediately, get fresh air, and SEEK MEDICAL TREATMENT. Do not run the engine indoors. Even if you
try to ventilate engine exhaust with fans or open windows and doors, carbon monox­ide can rapidly reach dangerous levels.
Do not run the engine in poorly ventilated
or partially enclosed areas such as barns, garages, or carports.
Do not run the engine outdoors where en-
gine exhaust can be drawn into a building through openings such as windows and doors.
Genuine Yamaha Accessories
Choosing accessories for your snowmobile is an important decision. Genuine Yamaha Ac­cessories, which are available only from a Yamaha dealer, have been designed, tested, and approved by Yamaha for use on your snowmobile. Many companies with no con­nection to Yamaha manufacture parts and accessories or offer other modifications for Yamaha vehicles. Yamaha is not in a position to test the products that these aftermarket companies produce. Therefore, Yamaha can neither endorse nor recommend the use of accessories not sold by Yamaha or modifica­tions not specifically recommended by Yamaha, even if sold and installed by a Yamaha dealer.
Maintenance and storage
When laying the snowmobile on its side for
maintenance, use a suitable stand to keep it in a stable and level position.
Do not leave the snowmobile on its left side
for an extended period of time. Fuel may leak out from the fuel breather hose.
Do not allow anyone to stand behind the
snowmobile when starting, inspecting, or adjusting the snowmobile. A broken track, track fittings, or debris thrown by the track could be dangerous to the operator or by­standers.
Modifications made to the snowmobile not
approved by Yamaha, or the removal of original equipment may render your snow­mobile unsafe for use, which may cause severe personal injury. Modifications may also make the snowmobile illegal to use.
Never store the snowmobile with fuel in the
fuel tank inside a building where ignition sources are present such as hot water and space heaters, an open flame, sparks, clothes dryers, and the like. Allow the en­gine to cool off before storing the snowmo­bile in an enclosed space.
10
Page 19
ESU10262
1 2,3,4,5,6,7 8 9 10,11 12 13 14
15
1617

Description

1. Air filter
2. Battery
3. Coolant reservoir
4. Fuse box
5. Throttle stop screw
6. Main fuse
7. Oil filler cap
8. V-belt holder
9. Strap
10. Storage compartment
11. Tool kit
12. Passenger grip warmer switch
13. Rear carrier
14. Tail/brake light
15. Tow hitch bracket
16. Slide rail suspension
17. Drive track
11
Page 20
Description
TIP
1102 3 4 5 6 7
8
9
1112
8
1. Brake lever
2. Parking brake lever
3. Grip warmer adjusting switch
4. Headlight beam switch
5. Engine stop switch
6. Thumb warmer adjusting switch
7. Throttle lever
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.
8. Shroud latch
9. Shift lever
10. Main switch
11. Auxiliary DC jack
12. Starter (choke) lever
12
Page 21
ESU12692
TIP
TIP
13
2

Main switch

The main switch controls the ignition and lighting systems. The various positions are described below.
1. Off
2. On
3. Start
Off
The ignition circuit is switched off. The key can be removed only in this position.
On
The ignition circuit is switched on.
Start
The starting circuit is switched on. The starter motor cranks the engine.
NOTICE: Release the switch immediately after the engine starts.
The headlights, meter lighting, and taillight come on after the engine is started.
ESU10302
[ECS00022]

Starter (choke) lever

Use the starter (choke) lever when starting and warming up a cold engine.

Control functions

1. Starter (choke) lever
Refer to the “Starting the engine” section on page 32 for proper operation.
1. When starting a cold engine.
2. Warming up
3. When the engine is warm.
ESU10313

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.
13
Page 22
Control functions
WARNING
TIP
1. Throttle lever
ESU10335

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

EWS00042
If the T.O.R.S. is activated, make sure that the cause of the malfunction has been corrected and that the engine can be op­erated without a problem before restarting the engine. Continuing to operate with a malfunction could cause loss of control or damage.
If the throttle valves or throttle cable malfunc­tions during operation, the T.O.R.S. will be activated when the throttle lever is released. The T.O.R.S. is designed to override the igni­tion 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 81 for the clutch engagement speed.)
Malfunc-
tion
T. O. R. S .
will be
activated.
Throttle lever
Throttle valve
T.O.R.S.
Idling Riding
Released Squeezed Released
Closed Open Open
Engine
runs
properly.
Engine
runs
properly.
If the T.O.R.S. is activated, the warning light and engine trouble warning indicator will flash, and the two-digit code “84” will flash in the meter display. If this occurs, have a Yamaha dealer check the system as soon as possible.
1. Warning light “ ”
2. Engine trouble warning indicator “ ”
3. Two-digit code “84”
ESU10357

Multi-function meter unit

The multi-function meter unit is equipped with the following:
a digital speedometera tachometeran odometera tripmeter (which shows the distance trav-
eled since it was last set to zero)
warning indicators (which show engine
trouble, coolant temperature, fuel level, and oil level warnings)
indicator lights (which show high beam and
low coolant temperature 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 level or the thumb warmer level)
14
Page 23
Control functions
TIP
1
2436
7
5
1
After the engine is started, the tachometer makes one sweep, and the low coolant tem­perature indicator light, the warning light, and all segments of the meter display come on and go off.
1. Tachometer
2. Low coolant temperature indicator light “
3. High beam indicator light “
4. Warning light “ ”
5. Warning indicators
6. Meter display
7. Select/reset button
The grip warmer level is initially displayed for 5 seconds, then the display switches to the fuel meter.
Odometer and tripmeter modes
Pushing the select/reset button switches the display between the odometer mode “ODO” and the tripmeter mode “TRIP” in the follow­ing order: ODO TRIP ODO
To reset the tripmeter, push the select/reset button for at least one second while the trip­meter is displayed.
To switch the speedometer, odometer, and tripmeter displays between kilometers and miles, select the odometer mode “ODO”, and then push the select/reset button for at least 10 seconds while the snowmobile is stopped.
ESU10412
High beam indicator light “
The high beam indicator light comes on when the high beams of the headlights are switched on. (See page 19 for headlight beam switch operation.)
1. High beam indicator light “
ESU10485
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. Odometer/tripmeter
15
Page 24
Control functions
TIP
TIP
1. Low coolant temperature indicator light “
2. Warning light “ ”
3. Engine trouble warning indicator “ ”
4. Two-digit code “86”
Drive the snowmobile at low speeds when the low coolant temperature indicator light is on. If the engine speed is too high, the warn­ing light and engine trouble warning indicator will flash and the two-digit code “86” will flash in the tripmeter/odometer display. When this occurs, maximum engine speed is reduced to protect the engine.
ESU10428

Fuel meter and grip/thumb warmer level indicator

The fuel meter and grip/thumb warmer level indicator have eight segments which show the amount of fuel remaining in the fuel tank, the grip warmer level, or the thumb warmer level.
1. Fuel meter and grip/thumb warmer level in­dicator
Fuel meter
The display segments of the fuel meter disap­pear towards “E” (Empty) as the fuel level de­creases. When only one segment is left near “E”, the fuel level warning indicator and the warning light come on.
1. Warning light “ ”
2. Fuel level warning indicator “ ”
If the fuel level warning indicator and the warning light come on, refuel as soon as pos­sible.
The snowmobile must be stopped on a level surface to obtain an accurate fuel meter reading, since the reading changes accord­ing to the movement and inclination of the snowmobile.
16
Page 25
Grip/thumb warmer level indicator
TIP
1
When the grip warmer adjusting switch is pressed, the grip warmer indicator comes on and the display switches to the grip warmer level. When the 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 19 for detailed information.
1. Grip warmer indicator “
2. Thumb warmer indicator “
1. Grip warmer adjusting switch
Control functions
1. Thumb warmer adjusting switch
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.
The top segment of the grip/thumb warmer
level indicator flashes once when the grip/thumb warmer adjustment reaches the maximum level. The bottom segment of the grip/thumb warmer level indicator flashes once when the grip/thumb warmer adjustment reaches the minimum level.
When the engine is started, the grip/thumb
warmer levels are set to the levels selected when the engine was last stopped.
ESU10456
Fuel level warning indicator “ ”
The fuel level warning indicator and the warn­ing light come on when the fuel level is low. (See page 16 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.
17
Page 26
Control functions
NOTICE
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
ESU10464
Oil level warning indicator “ ”
The oil level warning indicator and the warn­ing light come on when the engine oil level is low.
If the oil level warning indicator and the warn­ing light do not go off, check the engine oil level in the oil tank (see page 50 for engine oil level checking procedures), and add engine oil if necessary. If the oil level warning indicator and the warn­ing light still remain on, have a Yamaha dealer check the snowmobile.
ESU10514
Coolant temperature warning indicator “ ”
If the engine overheats, the coolant tempera­ture warning indicator and the warning light come on. When this occurs, stop the engine immediately and allow the engine to cool down, and then check the coolant level in the coolant reservoir. (See page 55 for checking procedures.)
1. Oil level warning indicator “ ”
2. Warning light “ ”
If the oil level 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 oil level 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.
18
1. Coolant temperature warning indicator “ ”
2. Warning light “ ”
ECS00042
Do not continue to operate the engine if it is overheating.
ESU12687

Self-diagnosis device

This model is equipped with a self-diagnosis device for various electrical circuits. If a problem is detected in any of those cir­cuits, the warning light and the engine trouble warning indicator flash, and an error code flashes slowly in the meter display. Note the
Page 27
Control functions
1
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.
[ECS00821]
1. Warning light “ ”
2. Engine trouble warning indicator “ ”
3. Error code display
ESU10532
Engine stop switch “ ”
The engine stop switch is used to stop the engine in an emergency. Simply push the stop switch to stop the engine. To start the engine, pull the stop switch and proceed with starting the engine. (See page 32 for engine starting procedures.)
ESU10662

Headlight beam switch “LIGHTS”

Push the headlight beam switch to change the headlight to high beam “HI” or to low beam “LO”.
1. Headlight beam switch “LIGHTS”
2. High beam “HI”
3. Low beam “LO”
ESU12655

Grip/thumb warmer adjusting switch

The grip warmer adjusting switch and the thumb warmer adjusting switch control the electrically heated handlebar grips and throt­tle lever respectively.
1. Engine stop switch “ ”
During the first few rides, practice using the stop switch so that you can react quickly in an emergency.
1. Grip warmer adjusting switch
19
Page 28
Control functions
TIP
NOTICE
1. Thumb warmer adjusting switch
To raise the temperature
To raise the temperature, press the respec­tive switch to “HI”.
To lower the temperature
To lower the temperature, press the respec­tive switch to “LO”. See “Fuel meter and grip/thumb warmer level indicator” on page 16 for detailed informa­tion.
ESU10697

Auxiliary DC jack

The auxiliary DC jack is located in the front panel and can be used for accessories.
The auxiliary DC jack can only be used if the engine is running.
To use the auxiliary DC jack
1. Start the engine.
2. Open the auxiliary DC jack cap, and then insert the accessory power plug into the jack.
1. Auxiliary DC jack cap
2. Auxiliary DC jack
3. After using the auxiliary DC jack, be sure to remove the accessory power plug from the jack and to close the auxiliary DC jack cap.
ECS00123
To avoid circuit overload and a possible
fuse blowing, do not use accessories re­quiring more than the maximum rated capacity for the auxiliary DC jack. (See page 72 for the specified fuse amper­age.)
Do not use an automotive cigarette
lighter or other accessory with a plug that gets hot because the jack can be damaged.
Maximum rated capacity:
DC 12 V, 2.5 A (30 W)
ESU10552

Brake lever

The snowmobile is stopped by braking the entire drive system. Squeeze the brake lever towards the handle­bar grip to stop the snowmobile.
20
Page 29
Control functions
TIP
NOTICE
TIP
NOTICE
1. Brake lever
When the brake lever is squeezed, the brake light comes on.
ECS00061
Make sure that the brake lever end does not project out over the handlebar end. This will help prevent brake lever damage when the snowmobile is placed on its side for service.
ESU10582

Parking brake lever

When parking the snowmobile or starting the engine, apply the parking brake by moving the parking brake lever to the left.
ESU12563

Shift lever

The shift lever is used to shift your snowmo­bile into drive, reverse, or low. After coming to a complete stop, pull the shift lever out, turn it to the desired position (“D”, “R”, or “L”), and then release it.
1. Shift lever
2. “D” Drive (forward)
3. “R” Reverse
4. “L” Low (forward)
Make sure that the shift lever is completely shifted into position.
ECS00073
1. Parking brake lever
To release the parking brake, move the park­ing brake lever to the right.
Do not use the shift lever while the snow­mobile is moving, otherwise the drive train could be damaged.
21
Page 30
Control functions
WARNING
NOTICE
NOTICE
NOTICE
ESU10754

Drive guard

EWS00403
Coming in contact with the rotating V-
belt or clutch parts can cause severe in­jury or death. Never run the engine with the drive guard removed.
Make sure that the drive guard is in-
stalled securely before operating the snowmobile to protect against severe injury or death from a broken V-belt or other part should it come off the snow­mobile while it is in operation.
ECS00831
Never run the engine with the V-belt re­moved. Clutch components can be dam­aged.
The drive guard is designed to cover the V­belt clutch and V-belt in case parts break or come loose.
1. V-belt holder
ECS00181
Make sure that the V-belt is installed se­curely in the holders.
ESU10781
Carburetor coolant shut-off le­ver
The carburetor coolant shut-off lever controls the flow of coolant through the carburetor. Make sure that the lever is in the “ON” posi­tion to allow the coolant to flow and warm the carburetor while the ambient temperature is below 0 °C (32 °F).
1. Drive guard
ESU10762

V-belt holders

Keep a spare V-belt for emergency use by placing it into the V-belt holders provided.
22
1. Carburetor coolant shut-off lever
2. “ON” (open) position
3. “OFF” (closed) position
ECS00201
When operating the snowmobile in tem­peratures above 0 °C (32 °F), move the car­buretor coolant shut-off lever to the “OFF”
Page 31
position to stop the flow of coolant, since the carburetor does not need to be warmed.
ESU14351

Louvers

This snowmobile is equipped with louvers for ventilation located in the shroud and the low­er front cover. The upper left louver has a steel plate that can be installed or removed depending on the riding conditions. When operating the snowmobile in areas where the ambient tem­perature is 5 °C (41.5 °F) or higher, the steel plate can be removed as needed by remov­ing the screws. Before removing the steel plate, consult a Yamaha dealer.
1. Steel plate
2. Screw
ESU10682

Passenger grip warmer switch

The passenger grip warmer switch controls the electrically heated passenger grips.
Control functions
1. Passenger grip warmer switch
2. Off
3. “HI” (high)
4. “LO” (low)
ESU10832

Storage areas

This snowmobile is equipped with a storage compartment, storage pouches, rear storage area, and rear carrier.
Storage compartment
The storage compartment is located under the rider seat. Use the storage compartment to store the tool kit, spare parts, and other small items. The storage compartment extends under the fuel tank, so it can also be used to store long items such as tools. To open the rider seat, pull the seat latch, and then slowly raise the seat until it stops. To close the seat, slowly lower it to its original position, and then push down on the right side of the seat to lock it in place.
1. Seat latch
23
Page 32
Control functions
NOTICE
WARNING
1
2
1
ECS00221
Do not place sharp items in the storage
compartment. Fuel could leak if the fuel tank is damaged.
The bottom of the storage compartment
may be hot during or immediately after operating the snowmobile. It can cause burns if it becomes extremely hot. Fur­thermore, heat in the storage compart­ment can affect the quality of food items, and deform and discolor plastic items.
Rear storage area and rear carrier
The rear storage area and the rear carrier are located at the rear of the snowmobile. The rear storage area is located under the passenger seat and it can be used only when the seat and backrest are removed.
1. Rear storage area
2. Rear carrier
Maximum load limit:
Rear storage area:
5 kg (11 lbs)
Rear carrier:
20 kg (44 lbs)
Storage pouches
The storage pouches are located above the rider footrests. Use the storage pouches to store spare parts and other small items.
1. Storage pouch
Maximum load limit:
0.3 kg (0.7 lbs)
24
EWS00141
Do not use the rear carrier to lift the snow­mobile. The snowmobile could fall, which could result in severe injury or death.
To remove the passenger seat and backrest
1. Open the rider seat. (See “Storage com­partment” for details.)
2. Remove the passenger seat bolts, slide the passenger seat and backrest slightly rearward, and then lift them straight up to remove them.
Page 33
Control functions
NOTICE
1
2
1
1. Passenger seat bolt
2. Passenger seat and backrest
3. Install the passenger seat bolts, and then tighten them to the specified torque.
NOTICE: When using the rear storage area, do not load any cargo that is too large for it. In addition, cargo must not project from the edges of the rear storage area.
[ECS00212]
Passenger seat bolt tightening torque:
48 Nm (4.8 m·kgf, 35 ft·lbf)
To install the passenger seat and backrest
1. Open the rider seat. (See “Storage com­partment” for details.)
2. Remove the passenger seat bolts, insert the hooks on the bottom of the passen­ger seat and backrest into the slots in the rear storage area, and then slide the seat and backrest forward. NOTICE: Make
sure that the wire harness is not pinched when installing the passen­ger seat and backrest.
[ECS00232]
1. Passenger seat bolt
3. Install the passenger seat bolts, and then tighten them to the specified torque.
ESU10864

Tow hitch bracket

ECS00242
To prevent premature wear of the V-belt, avoid traveling under 10 km/h (6 mi/h) when towing for long distances or long pe­riods of time.
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.
25
Page 34
Control functions
TIP
WARNING
WARNING
1
1. Tow hitch bracket
A tow hitch is available at a Yamaha dealer.
Tow weight limit:
120 kgf (264 lbf)
Vertical weight limit:
15 kgf (33 lbf)
ESU10619

Fuel

EWS00072
Gasoline and gasoline vapors are ex­tremely flammable. To avoid fires and ex­plosions and to reduce the risk of injury when refueling, follow these instructions.
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.
Make sure there is sufficient gasoline in the tank.
1. Before refueling, turn off the engine and be sure that nobody is on the snowmo­bile. Never refuel while smoking, or while in the vicinity of sparks, open flames, or other sources of ignition such as the pilot lights of water heaters and clothes dry­ers.
2. Do not overfill the fuel tank. Stop filling when the fuel reaches the bottom of the filler tube. Because fuel expands when it heats up, heat from the engine or the sun can cause fuel to spill out of the fuel tank.
26
EWS00681
Gasoline is poisonous and can cause inju­ry or death. Handle gasoline with care. Never siphon gasoline by mouth. If you should swallow some gasoline or inhale a lot of gasoline vapor, or get some gasoline
Page 35
Control functions
NOTICE
WARNING
WARNING
in your eyes, see your doctor immediately. If gasoline spills on your skin, wash with soap and water. If gasoline spills on your clothing, change your clothes.
Recommended fuel:
Min 91 RON UNLEADED GASOLINE ONLY (RUS) Min 95 RON UNLEADED GASOLINE ONLY (FIN)(SWE)
Fuel tank capacity:
40.0 L (10.57 US gal, 8.80 Imp.gal)
Your Yamaha engine has been designed to use unleaded gasoline with a research oc­tane number of 95 or higher. (For Russia, reg­ular unleaded gasoline with a pump octane number [(R+M)/2] of 86 or higher, or a re­search octane number of 91 or higher.)
ECS00095
Make sure that snow or ice does not en-
ter the fuel tank when refueling.
The fuel tank should be filled with the
recommended gasoline. The use of oth­er gasoline will cause severe damage to internal engine parts, such as the valves and piston rings, as well as to the ex­haust system.
ESU10875

Suspension

The suspension can be adjusted to suit rider preference. Softer settings, for example, may provide greater rider comfort, while harder settings may allow more precise handling and control over certain types of terrain or riding conditions. If you are not familiar with suspension adjust­ments, have a Yamaha dealer make these adjustments.
EWS00152
Read and understand the following infor­mation before handling shock absorbers that contain highly pressurized nitrogen gas. Do not tamper with or attempt to open
the cylinder assemblies.
Do not subject the shock absorbers to
an open flame or other high heat source. This may cause the unit to explode due to excessive gas pressure.
Do not deform or damage the cylinders
in any way. Cylinder damage will result in poor damping performance.
Do not dispose of a damaged or worn
out shock absorber yourself. Take the shock absorber to a Yamaha dealer for any service.
ESU10885
Adjusting the spring preload of the front shock absorbers
EWS00721
The spring preload of the left and right shock absorbers must be adjusted to the same setting. Uneven settings can cause poor handling and loss of stability.
The spring preload can be adjusted by turn­ing the adjusting rings. 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).
27
Page 36
Control functions
WARNING
1
(a)
(b)
1
(b)
(a)
1. Spring preload adjusting ring
Spring preload setting:
Minimum (soft):
1
Standard:
1
Maximum (hard):
5
ESU14321
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 on the center shock ab­sorber and the adjusters on the rear torsion springs. Adjust the spring preload as follows.
Center shock absorber
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).
1. Spring preload adjusting ring
Spring preload setting:
Minimum (soft):
1
Standard:
1 (For EUROPE) 3 (For RUSSIA)
Maximum (hard):
5
Rear torsion springs
EWS00751
The left and right spring preloads must be adjusted to the same setting. Uneven set­tings can cause poor handling and loss of stability.
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).
28
Page 37
Control functions
WARNING
TIP
1
(b)
(a)
(a)
(b)
1
2
1. Spring preload adjuster
Spring preload setting:
Minimum (soft):
S
Standard:
S
Maximum (hard):
H
ESU13114
Adjusting the spring preload of the sliding frame extension
EWS00751
The left and right spring preloads must be adjusted to the same setting. Uneven set­tings can cause poor handling and loss of stability.
The spring preload of the sliding frame exten­sion can be adjusted by turning the adjusting nuts. To increase the spring preload, turn the ad­justing nut in direction (a). To decrease the spring preload, turn the adjusting nut in direc­tion (b).
1. Spring preload adjusting nut
2. Distance A
The spring preload setting is determined by measuring distance A, shown in the illustra­tion. The longer distance A is, the higher the spring preload; the shorter distance A is, the lower the spring preload.
Spring preload setting*:
Minimum (soft):
13 mm (0.51 in)
Standard:
13 mm (0.51 in)
Maximum (hard):
15 mm (0.59 in)
* Distance A changes 1.25 mm (0.05 in)
with each full turn of the adjusting nut.
29
Page 38

Pre-operation checks

WARNING
ESU11072
Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condi­tion. Always follow the inspection and maintenance procedures and schedules described in the Owner’s Manual.
EWS00192
Failure to inspect or maintain the vehicle properly increases the possibility of an acci­dent or equipment damage. Do not operate the vehicle if you find any problem. If a prob­lem cannot be corrected by the procedures provided in this manual, have the vehicle inspected by a Yamaha dealer.
ESU11082

Pre-operation check list

ITEM CHECKS PAGE
Fuel
Engine oil
Coolant
V-belt
Drive guard
Brake
Air filter
Louvers
Tool kit and recommended equipment
Shroud and covers
• Check fuel level.
• Refuel if necessary.
• Check fuel line for leakage.
• Check oil level in engine.
• If necessary, add recommended oil to specified level.
• Check vehicle for oil leakage.
• Check coolant level.
• Add if necessary.
• Check for wear and damage.
• Replace if necessary.
• Make sure the drive guard is installed securely.
• Check the drive guard mounts for damage.
• Check operation.
• If soft or spongy, have Yamaha dealer bleed hy­draulic system.
• Check brake pads for wear.
• Replace if necessary.
• Check fluid level in master cylinder.
• If necessary, add recommended brake fluid to specified level.
• Check hydraulic system for leakage.
• Check that there is no snow under the air filter ele­ment.
• If necessary, brush off the snow.
• Check condition.
• Remove snow if necessary.
• Check for proper placement. 45, 45
• Make sure that the shroud and covers are securely fastened.
26
50
55
56
22
60
49
23
45
30
Page 39
Pre-operation checks
ITEM CHECKS PAGE
Skis and ski runners
Drive track
Slide runners
Steering • Check for excessive free play. 65
Strap
Lights, signals and switch-es• Check operation.
Throttle lever
Throttle override system (T.O.R.S.)
• Check for wear and damage.
• If necessary, have Yamaha dealer replace skis or ski runners.
• 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.
63
66
66
38
19, 19, 70, 71
13
48
31
Page 40

Operation

WARNING
TIP
TIP
1 2
ESU13503
Read the Owner’s Manual carefully to be­come familiar with all controls. If there is a control or function you do not understand, ask your Yamaha dealer.
EWS00204
Failure to familiarize yourself with the con­trols can lead to loss of control, which could cause an accident or injury.
ESU13481
This model is equipped with 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.
ESU11295

Starting the engine

1. Apply the parking brake.
1. Run position
2. Off position
3. Fully open the starter (choke) lever.
1. Starter (choke) lever
2. Fully open position (cold engine starting)
3. Half-open position (warming engine up)
4. Closed position (warm engine starting)
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.
32
The starter (choke) lever is not required when the engine is warm. Move the starter (choke) lever to the closed position.
4. Turn the main switch to the start position and release it when the engine starts.
NOTICE: Release the switch immedi­ately after the engine starts. If the en­gine fails to start, release the switch, wait a few seconds, then try again. Each attempt should be as short as possible to preserve the battery. Do not crank the engine more than 10 seconds on any one attempt.
[ECS00332]
Page 41
NOTICE
WARNING
1. Start
1
5. Warm up the engine, and then close the starter (choke) lever when the engine runs smoothly.
6. Be sure the low coolant temperature in­dicator light has gone out before opera­tion. (See page 15 for detailed information about the indicator light.)
ESU11311

Break-in

There is never a more important period in the life of your engine than the period between 0 and 500 km (300 mi). For this reason, you should read the following material carefully. Since the engine is brand new, do not put an excessive load on it for the first 500 km (300 mi). The various parts in the engine wear and polish themselves to the correct operating clearances. During this period, prolonged full-throttle operation or any condition that might result in engine overheating must be avoided.
Operating your snowmobile for the first time
Start the engine and let it idle for 15 minutes.
0–160 km (0–100 mi)
Avoid prolonged operation above 6000 r/min.
160–500 km (100–300 mi)
Avoid prolonged operation above 8000 r/min.
500 km (300 mi) and beyond
The snowmobile can now be operated nor­mally.
Operation
ECS00341
After 800 km (500 mi) of operation, the
engine oil must be changed and the oil filter cartridge replaced.
If any engine trouble should occur dur-
ing the engine break-in period, immedi­ately have a Yamaha dealer check the snowmobile.
ESU12626

Riding your snowmobile

Getting to know your snowmobile
EWS00212
To avoid severe injury or death: Keep both hands on the handlebar dur-
ing operation.
Never put your feet outside the running
boards.
Avoid higher speeds or more difficult
maneuvers until you have become thor­oughly familiar with your snowmobile and all of its controls.
A snowmobile is a rider active vehicle, and your riding position and your balance are the two basic factors of maneuvering your snow­mobile. Riding your snowmobile requires skills ac­quired through practice over a period of time. Take the time to learn the basic techniques well before attempting more difficult maneu­vers. Riding your new snowmobile can be a very enjoyable activity, providing you with hours of pleasure. However, it is essential to familiar­ize yourself with the operation of the snow­mobile to achieve the skill necessary to enjoy riding safely. Before operating the snowmo­bile, read this Owner’s Manual completely and understand the operation of the controls.
33
Page 42
Operation
WARNING
Pay particular attention to the safety informa­tion on page 9. Please read all warning and notice labels on your snowmobile.
Learning to ride your snowmobile
Before you ride, always perform the pre-op­eration checks listed on page 30. 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 32 to start the engine. Once the engine has warmed up, you are ready to be­gin riding your snowmobile.
Braking
EWS00221
Many surfaces such as ice and hard-
packed snow require much longer stop­ping distances. Be alert, plan ahead, and begin decelerating early.
Improper use of the brake can cause the
drive track to lose traction, reduce con­trol, and increase the possibility of an accident.
When slowing down or stopping, release the throttle and apply the brake gently—not sud­denly.
Turning
For most snow surfaces, “body English” is the key to turning. As you approach a curve, slow down and be­gin to turn the handlebar in the desired direc­tion. As you do so, put your weight on the running board to the inside of the turn and lean your upper body into the turn.
To start out and accelerate
1. With the engine idling, release the park­ing brake.
2. Apply the throttle slowly and smoothly. The V-belt clutch will engage and you will start to accelerate. WARNING! Do not
allow anyone to stand behind the snowmobile when starting the engine. A broken track, track fittings, or debris thrown by the track could be danger­ous to bystanders.
[EWS00691]
34
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.
Page 43
Improper riding techniques such as abrupt
WARNING
WARNING
throttle changes, excessive braking, incor­rect body movements, or too much speed for the sharpness of the turn may cause the snowmobile to tip. If your snowmobile begins to tip while turn­ing, lean more into the turn to regain balance. If necessary, gradually let off on the throttle or steer to the outside of the turn.
Remember:
Avoid higher speeds until you are thoroughly familiar with the operation of your snowmo­bile.
Riding uphill
EWS00232
Operation on slopes can lead to loss of control if proper techniques are not used. Follow these instructions to reduce your risk of an accident. Do not try steeper or more difficult inclines until you have devel­oped your skill on gentle slopes.
You should practice first on gentle slopes. Try more difficult climbs only after you have de­veloped your skill. As you approach a hill, ac­celerate before you start the climb, and then reduce the throttle to prevent track slippage. It is also im portant 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
EWS00241
Use extra caution when applying the brake during a descent. Excessive braking will cause the drive track to lock, causing a loss of control.
When riding downhill, keep speed to a mini­mum. It is important to apply just enough throttle to keep the clutch engaged while de­scending the hill. This will allow you to use engine compression to help slow the snow­mobile, and to keep the snowmobile from rolling freely down the hill. Also apply the brake frequently, with light pressure.
35
Page 44
Operation
WARNING
WARNING
Traversing a slope
EWS00252
Driving across the face of a slope (“side­hilling”) can lead to overturn or loss of control if proper techniques are not used. Follow these instructions to reduce your risk of an accident. Do not try steeper or more difficult inclines until you have devel­oped your skill on gentle slopes.
Traversing a slope requires you to properly position your weight to maintain proper bal­ance. As you travel across the slope, lean your body to position your weight towards the uphill side. A recommended riding posi­tion is to kneel with the knee of your downhill leg on the seat and the foot of your uphill leg on the running board. This position will make it easier for you to shift your body weight as needed.
Snow and ice are slippery, so be prepared for the possibility that your snowmobile could begin to slip sideways on the slope. If this happens, steer in the direction of the slide if there are no obstacles in your path. As you regain proper balance, gradually steer again in the direction you wish to travel. If your snowmobile starts to tip, steer down the hill to regain balance. WARNING! If you
are unable to maintain correct balance, and your snowmobile is going to tip over, dismount your snowmobile immediately on the uphill side to avoid being hit or caught under the snowmobile as it tips over.
[EWS00262]
Ice or icy surface
EWS00271
When you have to operate on ice or icy surfaces, drive slowly and cautiously. Avoid accelerating, turning, and braking rapidly. Steering is minimal and uncon­trolled spins are an ever-present danger.
Operating on ice or icy surfaces can be very dangerous. Traction for turning, stopping, and starting is much less than that on snow.
Hard-packed snow
It can be more difficult to negotiate on hard­packed snow as both the skis and drive track do not have as much traction as when the snowmobile is operated on fresh snow. Avoid rapid acceleration, turning, and braking.
36
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
Page 45
Operation
WARNING
NOTICE
track, slide runners, and drive sprockets. Op­eration of the snowmobile on the following surfaces should be avoided at all times:
DirtSandRocksGrassBare pavement
Other surfaces that should be avoided for the sake of drive track and slide runner life are:
Glare ice surfacesSnow mixed with a lot of dirt and sand
All of the above surfaces have one thing in common in regard to drive track and slide runners: little or no lubricating ability. Drive track and all slide rail systems require lubrica­tion (snow or water) between the slide run­ners and the slide metal. In the absence of lubrication, the slide runners will rapidly wear and in severe cases, literally melt away, and the drive track will be subject to damage or failure. Also traction aids such as studs, cleats, etc., may cause further track damage or failure.
EWS00281
Drive track damage or failure could result in loss of braking ability and snowmobile control, which could cause an accident. Always check the drive track for dam-
age or maladjustment before operating the snowmobile.
Do not operate the snowmobile if you
find damage to the drive track.
ECS00351
ESU11351

Maximizing drive track life

Recommendations Track tension
During initial break-in, the new drive track will tend to stretch quickly as the track settles. Be sure to correct the track tension and align­ment frequently. (See page 66 for adjustment procedures.) A loose track can slip (ratchet), derail or catch on suspension parts causing severe damage. Do not overtighten the drive track, otherwise it may increase the friction between the track and the slide runners, re­sulting in the rapid wear of both components. Also, this may put an excessive load on the suspension components, resulting in compo­nent failure.
Marginal snow
The drive track and the slide runners are lu­bricated and cooled by snow and water. To prevent the drive track and slide runners from overheating, avoid sustained high-speed us­age in areas such as icy trails, frozen lakes and rivers that have minimal snow coverage. An overheated track will be weakened inter­nally, which may cause failure or damage.
Off-trail riding
Avoid off-trail riding until there is sufficient snow coverage. It generally takes several feet of snow to provide a good overall base to properly cover debris, such as rocks, logs, etc. If snow coverage is not sufficient, stay on trails to avoid impact damage to the drive track.
Ride on fresh snow frequently. Operating on ice or hard-packed snow will rapidly wear the slide runners.
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
37
Page 46
Operation
WARNING
WARNING
WARNING
TIP
around the already weakened area. To mini­mize possible damage, consult your stud manufacturer for installation and stud pattern recommendations.
Yamaha does not recommend track stud­ding.
ESU11361

Strap

The strap should be used only by experi­enced operators to assist them when tra­verse (side-hill) riding.
1. Strap
EWS00291
Improper use of the strap on the handle­bar can result in severe injury or death. Use the strap only as an operator grip
point when needed to shift weight uphill to maintain balance during traverse (side-hill) riding. Only experienced oper­ators should traverse slopes steep enough to require strap use.
Keep the right hand on the right handle-
bar grip for steering, and grip the strap with the left hand to shift weight uphill for balance during traverse riding.
Ride cautiously while using the strap. Do
not accelerate or decelerate abruptly while holding onto the strap.
Do not use the strap to lift the snowmo-
bile.
Do not use the strap as a mounting point
for cargo or accessories.
ESU12577

Driving

EWS00301
Be sure to read the “SAFETY INFORMA­TION” section on page 9 and the “Riding your snowmobile” section on page 33 carefully before operating the snowmo­bile.
EWS00632
Make sure that the throttle lever is fully
released and the snowmobile is at a full stop before shifting.
Be sure to turn the shift lever to “D”, “R”
or “L” until it stops completely and only while the engine is idling.
Do not exceed 80 km/h (50 mi/h) when
the shift lever is set to the “L” position.
Make sure that the area behind the
snowmobile is clear before reversing. Watch behind.
Reduce speed and avoid sharp turning
when operating the snowmobile in re­verse.
Make sure that the engine is warmed up be­fore riding.
1. While the engine is idling, select the de­sired operating position (“D”, “R”, or “L”) by pulling the shift lever out, turning it to the position, and then releasing it.
NOTICE: Do not shift from forward to reverse or from reverse to forward while the snowmobile is moving, as the drive train could be damaged.
[ECS00743]
38
Page 47
Operation
TIP
1
1. “D” Drive (forward)
2. “R” Reverse
3. “L” Low (forward)
The reverse buzzer beeps while the transmis­sion is in reverse.
2. Release the parking brake by moving the parking brake lever to the right.
3. Squeeze the throttle lever slowly to start out.
4. Turn the handlebar in the desired direc­tion.
5. Squeeze the brake lever to stop the snowmobile.
6. Apply the parking brake by moving the parking brake lever to the left.
ESU11412

Stopping the engine

Turn the main switch to the off position to
stop the engine.
1. Off
Push down the engine stop switch to stop
the engine in an emergency.
ESU11421

Transporting

When transporting your snowmobile on a trailer or in a truck, observe the following rec­ommendations to help protect it from dam­age: Make sure that the fuel level in the fuel tank
is lower than the bottom of the carburetors. Otherwise, the vibration and bumps from the road surface could make it possible for fuel to flow through the carburetors into the cylinders. This can result in “hydrostatic lock,” a condition where the engine cannot rotate because of fuel accumulated in the engine. Severe engine damage can result from hydrostatic lock. When possible, the fuel tank should be empty during transpor­tation, especially if the trip takes longer than 30 minutes.
39
Page 48
Operation
If transporting the snowmobile in an open
trailer or truck, put a tight fitting cover on the snowmobile. A cover specifically de­signed for your snowmobile is best. This will help keep foreign objects out of the cooling vents in the shroud, 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.
40
Page 49

Periodic maintenance and adjustment

WARNING
WARNING
WARNING
ESU11453
Periodic inspection, adjustment, and lubrication will keep your snowmobile in the safest and most efficient condition possible. Safety is an obligation of the vehicle owner/operator. The most important points of vehicle inspection, adjustment, and lubrication are explained on the following pages.
EWS00342
Failure to properly maintain the snowmobile or performing maintenance activities incor­rectly may increase your risk of injury or death during service or while using the snow­mobile. If you are not familiar with snowmobile service, have a Yamaha dealer perform service.
EWS00701
Turn off the engine when performing maintenance unless otherwise specified. A running engine has moving parts that can catch on body parts or clothing, and elec-
trical parts that can cause shocks or fires.
Running the engine while servicing can lead to eye injury, burns, fire, or carbon mon-
oxide poisoning–possibly leading to death. See page 9 for more information about carbon monoxide.
EWS00791
Brake discs, calipers, and linings can become very hot during use. To avoid possible burns, let brake components cool before touching them.
Maintenance, replacement, or repair of the emission control devices and systems may be performed by any repair establishment or individual that is certified (if applicable).
Proper periodic maintenance of your snowmobile is important in order to enjoy long, pleasur­able use. Especially important are the maintenance services related to emission control. These controls not only function to ensure cleaner air, but are also vital to proper engine op­eration and maximum performance. In the following periodic maintenance charts, the services related to emission control are grouped separately. These services require specialized data, knowledge, and equipment. Yamaha dealers are trained and equipped to perform these par­ticular services.
41
Page 50
Periodic maintenance and adjustment
ESU11462

Periodic maintenance chart for the emission control system

Items marked with an asterisk should be performed by a Yamaha dealer as they require spe­cial tools, data and technical skills.
INITIAL EVERY
ITEM REMARKS
Spark plugs
* Valve clearance
Crankcase breath-
*
er system
* Fuel filter
* Fuel line
* Idle speed • Check and adjust idle speed. 47
* Carburetors
* Exhaust system
• Check condition.
• Adjust gap and clean.
• Replace if necessary.
• Check and adjust valve clear­ance when engine is cold.
• Check breather hose for cracks or damage.
• Replace if necessary.
• Check condition.
• Replace if necessary.
• Check fuel hose for cracks or damage.
• Replace if necessary.
• Adjust synchronization.
• Adjust the jets.
• Check for leakage.
• Tighten or replace gasket if necessary.
1 month
or 800 km
(500 mi)
(40 hr)
Every 40000 km (25000
Whenever operating
condition (eleva-
tion/temperature) is
Seasonally
4000 km (2500 mi)
mi)
changed.
or
(200 hr)
PAGE
46
50
50
42
Page 51
Periodic maintenance and adjustment
ESU11566

General maintenance and lubrication chart

ITEM REMARKS
Engine oil
Engine oil filter car-
*
tridge
* Cooling system
Primary and sec-
*
ondary clutches
* Drive chain
* Drive chain oil
* Shift lever
Brake and parking
*
brake
Control cables
Disc brake installa-
*
tion
Extrovert drive
*
sprocket
• 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. 59
• Change. 59
• Lubricate with specified grease.
• 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.
1 month
or 800 km
Whenever operating ele-
Initial at 500 km (300 mi)
and every 800 km (500
Every 1600 km (1000 mi)
INITIAL EVERY
Seasonally
or
(500 mi)
(40 hr)
vation is changed.
mi) thereafter.
See TIP following this
4000 km (2500 mi)
(200 hr)
Every
20000 km
(12000 mi)
chart.
PAGE
50
50
55
59
60
60
69
63
43
Page 52
Periodic maintenance and adjustment
TIP
INITIAL EVERY
Seasonally
mi) thereafter.
ITEM REMARKS
* Slide runners
* Skis and ski runners
* Steering system
* Steering bearings
Skis and front
*
shock absorbers
Suspension compo-
*
nent
* Drive track
Fittings and fasten­ers
* Battery
• Check for wear and damage.
• Replace if necessary.
• Check for wear and damage.
• Replace if necessary.
• Check toe-out.
• Adjust if necessary.
• Check bearing assemblies for looseness.
• Lubricate with specified grease.
• Lubricate with specified grease.
• Lubricate with specified grease.
• 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
or
4000 km
(2500 mi)
(200 hr)
PAGE
66
63
65
69
69
66
71
71
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.
44
Page 53
Periodic maintenance and adjustment
NOTICE
TIP
WARNING
ESU13471

Tool kit

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. Tool kit
ECS00961
Before starting the engine, make sure that the tools are properly seated in their hold­er.
V-beltLight bulbs
When you start out for a long distance trip, extra fuel should be carried as well.
ESU13963

Opening and closing the shroud and removing and installing the right side cover

EWS00811
Be sure the shroud and right side cover are secured before operation. A loose shroud or cover could move and cause loss of control.
Shroud
To open the shroud Unhook the shroud latches, and then slowly raise the shroud forward until it stops.
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.
ESU14231

Recommended equipment

It is good practice to carry the spare parts and other necessary equipment with you while riding the snowmobile so that minor re­pairs can be done if necessary. The following should be carried at all times:
FlashlightRoll of plastic tapeSteel wireTow rope
1. Shroud latch
2. Shroud
To close the shroud Slowly lower the shroud to its original posi­tion, and then hook the shroud latches.
Right side cover
To remove the right side cover
1. Open the shroud. (See the above proce­dure.)
2. Remove the screws and bolts, and then remove the right side cover.
45
Page 54
Periodic maintenance and adjustment
NOTICE
WARNING
1
3
2 1
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
1. Screw
2. Bolt
3. Right side cover
To install the right side cover
1. Place the right side cover in the original position, and then tighten the bolts and screws.
2. Close the shroud.
ECS01041
Make sure that all cables, leads, and
hoses are routed properly before clos­ing the shroud and installing the right side cover.
When installing the right side cover, be
sure to tighten the bolts and screws se­curely.
ESU11785

Checking the spark plugs

The spark plugs are important engine com­ponents and are easy to inspect. The condi­tion of the spark plugs can indicate the condition of the engine. Check the coloration on the white porcelain insulator around the center electrode. The ideal coloration at this point is a medium-to­light tan color for a snowmobile that is being ridden normally. If any spark plug shows a 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
plug.
Specified spark plug:
Manufacturer:
NGK
Model:
CR8E
EWS00711
Be sure to use the specified spark plug and spark plug cap. Otherwise, the T.O.R.S. may not work properly.
Spark plugs are produced in several different thread lengths. The thread length or reach is the distance from the spark plug gasket seat to the end of the threaded portion. If the reach is too long, overheating and engine damage may result. If the reach is too short, spark plug fouling and poor performance may result. Also, if the reach is too short, car­bon will form on the exposed threads result­ing in combustion chamber hot spots and thread damage. Always use a spark plug with the specified reach.
Spark plug reach:
19.0 mm (0.75 in)
46
Page 55
Periodic maintenance and adjustment
NOTICE
TIP
NOTICE
1. Spark plug gap
2. Spark plug reach
Before installing any spark plug, measure the spark plug gap with a wire thickness gauge and adjust to specification.
Spark plug gap:
0.7–0.8 mm (0.028–0.031 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)
3. Open the shroud.
4. Turn the throttle stop screw in or out to adjust the engine idling speed.
1. Throttle stop screw
Standard engine idling speed:
1300–1500 r/min
5. Close the shroud.
ESU11825

Adjusting the throttle lever free play

ECS00411
Be sure to adjust the engine idling speed first.
ECS00383
Make sure that the spark plug caps are se­curely installed. Otherwise the spark plug caps could be damaged due to engine vi­bration.
ESU11796

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.
Refer to the “Starting the engine” section on page 32.
1. Place the snowmobile on a level surface and apply the parking brake.
2. Open the shroud.
3. Loosen the locknut.
4. Turn the adjusting bolt in or out until the specified throttle lever free play is ob­tained.
47
Page 56
Periodic maintenance and adjustment
WARNING
TIP
1. Locknut
2. Throttle lever free play adjusting bolt
3. Throttle lever free play
Throttle lever free play:
2.0–3.0 mm (0.08–0.12 in)
5. Tighten the locknut.
6. Close the shroud.
ESU11864

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

EWS00353
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.
Check the T.O.R.S. for proper operation.
1. Start the engine.
Refer to the “Starting the engine” section on page 32.
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.
48
Page 57
Periodic maintenance and adjustment
2
1
1. Throttle lever pivot
2. Engine stop switch housing
3. Throttle lever
The T.O.R.S. will be activated and the engine speed will be limited to less than the clutch engagement speed. (See page 81 for the clutch engagement speed.)
WARNING! If the engine speed does not decrease to less than the clutch engagement speed, stop the engine by turning the main switch to the off position and consult a Yamaha dealer. Operating the snowmobile with a mal­functioning T.O.R.S. could result in loss of control.
ESU11876

Checking the air filter

Check that there is no snow under the air filter element frame after each ride. In addition, snow may need to be cleaned during a ride depending on the riding conditions.
[EWS00363]
1. Place the snowmobile on a level surface and apply the parking brake.
2. Open the shroud.
3. Remove the air filter case cover by un­hooking the case fastener and the case cover fasteners.
1. Air filter case cover fastener
2. Air filter case 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, brush off the snow, and then in­stall the air filter element.
49
Page 58
Periodic maintenance and adjustment
WARNING
NOTICE
5. Place the air filter element frame in the original position.
6. Install the air filter case cover and attach the air filter case by hooking all the fas­teners.
7. Close the shroud.
ESU11912

Carburetors

The carburetors are an important part of the engine and its emission control system, which require very sophisticated adjustment. Therefore, carburetor adjustments should be left to a Yamaha dealer, who has the neces­sary professional knowledge and experience.
ESU11942

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 can be adjusted to over­come most of the problems found in high-al­titude riding. Carburetor adjustments are the most important. Less air at high altitude makes the air/fuel ratio too rich, which can cause poor performance. Common problems are hard starting, bogging, and plug fouling. Proper carburetion adjustments will correct the air/fuel ratio. Be sure to have a Yamaha dealer make these adjustments.
Remember:
Less air at higher altitude means there is less horsepower available, even with proper car­buretion. Expect acceleration and top speed to be reduced at higher altitudes. To overcome operating with less power at high altitudes, your snowmobile may also re­quire different settings for the drive chain gears and V-belt clutch to avoid poor perfor­mance and rapid wear. If you plan to operate your snowmobile at an altitude different from
the area where you bought it, be sure to con­sult a Yamaha dealer. The dealer can tell you if there are any changes necessary for the al­titude where you plan to ride. NOTICE: The
drive chain gears and V-belt clutch should be adjusted when operating above a high altitude of 900 m (3000 ft). Consult a Yamaha dealer.
ESU11951
[ECS00432]

Valve clearance

The valve clearance changes with use, result­ing in improper air-fuel mixture and/or engine noise. To prevent this from occurring, the valve clearance must be adjusted by a Yamaha dealer at the intervals specified in the periodic maintenance chart.
ESU11977

Engine oil and oil filter cartridge

The engine oil level should be checked before each use. In addition, the oil must be changed and the oil filter cartridge replaced at the intervals specified in the periodic main­tenance and lubrication chart.
EWS00371
Engine oil is extremely hot immediately af­ter the engine is turned off. Coming into contact with or getting any engine oil on your clothes could result in burns.
ECS00483
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.
50
Page 59
Periodic maintenance and adjustment
TIP
TIP
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.
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.
The engine can also be warmed up by op-
erating the snowmobile for 10–15 minutes.
After operating the snowmobile, allow the
engine to idle for at least 10 seconds be­fore turning it off.
3. Open the shroud.
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.
[ECS00453]
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
The engine oil should be between the “H” and “L” level marks on the dipstick.
51
Page 60
Periodic maintenance and adjustment
1
232
21
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 81 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
81.) Make sure that no foreign material enters the engine oil tank.
7. Insert the dipstick into the oil filler hole, and then tighten the oil filler cap.
8. Connect the oil level gauge coupler.
9. Close the shroud.
To change the engine oil (with or without oil filter cartridge replacement)
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. Open the shroud.
4. Remove the right side cover and the bot­tom panel.
[ECS00463]
1. Right side cover
2. Screw
3. Bolt
1. Bolt
2. Bottom panel
5. Place an oil pan under the oil tank to col­lect the used oil.
6. Disconnect the oil level gauge coupler.
52
1. Oil level gauge coupler
2. Oil filler cap
Page 61
Periodic maintenance and adjustment
TIP
TIP
1
2
1
2
3
1
7. Remove the oil filler cap and cylinder head cap, and then remove the engine oil drain bolt and its gasket to drain the oil from the oil tank.
1. Cylinder head cap
1. Engine oil drain bolt (crankcase)
2. Gasket
3. “ ” mark
A “ ” mark is stamped on the crankcase
near the engine oil drain bolt.
Dispose of used oil according to local reg-
ulations.
Skip steps 10–12 if the oil filter cartridge is
not being replaced.
10. Remove the oil filter cartridge with an oil filter wrench.
1. Engine oil drain bolt (oil tank)
2. Gasket
8. Place an oil pan under the engine to col­lect the used oil.
9. Remove the engine oil drain bolt and its gasket to drain the oil from the crank­case.
1. Oil filter cartridge
An oil filter wrench is available at a Yamaha dealer.
11. Apply a thin coat of engine oil to the O­ring of the new oil filter cartridge.
53
Page 62
Periodic maintenance and adjustment
12. Install the new oil filter cartridge with an oil filter wrench, and then tighten it to the specified torque.
Tightening torque:
Oil filter cartridge:
17 Nm (1.7 m·kgf, 12 ft·lbf)
13. Install the engine oil drain bolts and their new gasket, and then tighten the bolts to the specified torques.
Tightening torques:
Engine oil drain bolt (crankcase):
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Engine oil drain bolt (oil tank):
16 Nm (1.6 m·kgf, 12 ft·lbf)
14. Add 2.0 L (2.11 US qt, 1.76 Imp.qt) of the recommended engine oil to the oil tank, and then install and tighten the oil filler cap and the cylinder head cap.
15. Start the engine, warm it up for several minutes, and then turn it off.
16. 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. (See above for the checking proce­dure.) NOTICE: When adding the
engine oil, be careful not to fill above the “H” level mark on the dipstick. Use only the recommended oil. (See page
81.) Make sure that no foreign material enters the engine oil tank.
[ECS00463]
1. “H” level mark
2. “L” level mark
Recommended engine oil:
See page 81.
Oil quantity:
With oil filter cartridge replacement:
3.0 L (3.17 US qt, 2.64 Imp.qt) Without oil filter cartridge replace­ment:
2.8 L (2.96 US qt, 2.46 Imp.qt)
Total amount:
3.7 L (3.91 US qt, 3.26 Imp.qt)
17. Install and tighten the oil filler cap.
18. 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, oil tank drain bolt, cyl­inder head cap, and the oil filler cap are installed correctly.
19. Turn the engine off, and then connect the oil level gauge coupler. 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.
[ECS00472]
20. Install the bottom panel and the right side cover, and then close the shroud.
54
Page 63
Periodic maintenance and adjustment
WARNING
NOTICE
1
2
ESU12026

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.
EWS00391
Do not remove the radiator 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 radiator cap, and slowly rotate the cap counterclockwise to the detent. This procedure allows any re­sidual pressure to escape. When the hiss­ing sound has stopped, press down on the cap while turning counterclockwise and remove it.
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.
1. “FULL” mark
2. Coolant reservoir cap
[ECS00493]
4. Close the shroud.
1. Radiator cap
To check the coolant level
1. Place the snowmobile on a level surface and apply the parking brake.
2. Open the shroud.
3. Check the coolant level in the coolant reservoir when the engine is cold. If the coolant level is below the “LOW” mark, remove the coolant reservoir cap and add coolant until it reaches the “FULL” mark. (See the following section “Re­plenishing the coolant” for more details.)
Bleeding the cooling system
The cooling system must be bled if the cool­ant reservoir becomes empty, if air can be seen in the cooling system, or if there is a cooling system leak. Consult a Yamaha deal­er.
ECS00501
Operating the engine with an improperly bled cooling system can cause overheat­ing and severe engine damage.
Replenishing the coolant
1. Place the snowmobile on a level surface and apply the parking brake.
55
Page 64
Periodic maintenance and adjustment
TIP
WARNING
NOTICE
1
2
2. Open the shroud.
3. Remove the coolant reservoir cap and add coolant until it reaches the “FULL” mark.
1. “FULL” mark
2. Coolant reservoir cap
If you find any leaks, consult a Yamaha deal­er.
8. Close the shroud.
ESU12057

V-belt

EWS00403
Coming in contact with the rotating V-
belt or clutch parts can cause severe in­jury or death. Never run the engine with the drive guard removed.
Make sure that the drive guard is in-
stalled securely before operating the snowmobile to protect against severe injury or death from a broken V-belt or other part should it come off the snow­mobile while it is in operation.
ECS00831
Never run the engine with the V-belt re­moved. Clutch components can be dam­aged.
Recommended antifreeze:
High-quality ethylene glycol anti­freeze containing corrosion inhibitors
Antifreeze and water mixing ratio:
3:2
Total amount:
4.70 L (4.97 US qt, 4.14 Imp.qt)
4. Start the engine and add coolant until the coolant level stabilizes, and then stop the engine.
5. Fill the coolant reservoir with coolant un­til it reaches the “FULL” mark.
6. Install the coolant reservoir cap.
7. Check for any coolant leakage.
56
The V-belt should be checked before each ride.
To check the V-belt
1. Open the shroud and remove the drive guard.
2. Check the V-belt for wear and damage. Replace if necessary.
Page 65
Periodic maintenance and adjustment
WARNING
NOTICE
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)
3. Install the drive guard and close the shroud.
To replace and adjust the V-belt
EWS00412
When installing a new V-belt, make sure that it is positioned properly. Otherwise, the V-belt clutch engagement speed will be changed and the snowmobile may move unexpectedly when the engine is started, which could cause an accident.
ECS00512
As the V-belt wears, the position of the V­belt will change. If the V-belt position is out of specification, it must be adjusted to ensure proper clutch performance. Have a Yamaha dealer make this adjust­ment.
1. Place the snowmobile on a level surface and apply the parking brake.
2. Open the shroud and remove the drive guard.
3. 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
4. Pull the V-belt up over the secondary fixed sheave.
1. V-belt
5. Remove the V-belt from the secondary sheave assembly and primary sheave assembly.
6. Temporarily install the new V-belt on the secondary sheave assembly only, and then measure the V-belt position. Do not force the V-belt between the sheaves; the secondary sliding and fixed sheaves must touch each other.
57
Page 66
Periodic maintenance and adjustment
2
1
1. Edge of the secondary sheave assembly
2. Standard V-belt position
Standard V-belt position:
From 1.5 mm (0.06 in) above the edge of the secondary sheave as­sembly to 0.5 mm (0.02 in) below the edge
7. If the V-belt position is incorrect, adjust it by removing or adding a spacer on each V-belt position adjusting bolt.
1. V-belt position adjusting bolt
2. Spacer
V-belt position Adjustment
More than 1.5 mm (0.06 in) above the edge
From 1.5 mm (0.06 in) above the edge to 0.5 mm (0.02 in) below the edge
More than 0.5 mm (0.02 in) below the edge
Remove a spacer.
Not necessary (it is correct).
Add a spacer.
58
8. Tighten the V-belt position adjusting bolts.
V-belt position adjusting bolt tightening torque:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
9. Install the V-belt over the primary sheave assembly.
Page 67
Periodic maintenance and adjustment
10. 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
11. Install the V-belt between the secondary sliding and fixed sheaves.
1. Rubber cap
3. Check the oil level through the check window, located on the drive chain hous­ing. If the oil is below the minimum level mark, remove the dipstick and add suffi­cient oil of the recommended type to raise it to the maximum level mark.
NOTICE: Make sure that no foreign material enters the drive chain hous­ing.
[ECS00532]
1. V-belt
12. Install the drive guard and close the shroud.
ESU12585

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 rubber cap.
1. Drive chain oil level check window
2. Maximum level mark
3. Minimum level mark
59
Page 68
Periodic maintenance and adjustment
WARNING
NOTICE
2. Turn the chain tension adjusting bolt clockwise until it is finger tight, and then loosen it 1/4 turn.
1. Dipstick
1. Locknut
2. Chain tension adjusting bolt
3. 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)
Recommended drive chain oil:
SAE 75W or 80W API GL-3 Gear oil
4. Install the dipstick, making sure to align the notch in the dipstick handle with the projection on the drive chain housing.
ESU12135

Brake and parking brake

EWS00441
A soft, spongy feeling in the brake lever
indicates a failure in the brake system.
Do not operate the snowmobile if you
find any problems in the brake system. You could lose braking ability, which could lead to an accident. Ask a Yamaha dealer to inspect and repair the brake system.
ECS00061
1. Notch
2. Projection
5. Install the rubber cap.
To adjust the chain tension
1. Loosen the locknut.
60
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.
Page 69
Periodic maintenance and adjustment
3
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. Open the shroud.
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)
1. Parking brake pad wear limit
Parking brake pad wear limit:
1.2 mm (0.047 in)
3. Close the shroud.
To adjust the parking brake As the parking brake pads wear, adjustment may be necessary to ensure proper brake performance.
1. Open the shroud.
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.
4. Close the shroud.
Checking the parking brake pads
Check the parking brake pads for wear ac­cording to the following procedure.
1. Open the shroud.
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.
1. Parking brake pad adjusting bolt locknut
2. Parking brake pad adjusting bolt
3. Parking brake cable length
4. Parking brake cable locknut
5. Parking brake cable adjusting bolt
61
Page 70
Periodic maintenance and adjustment
WARNING
4
3
Parking brake cable length:
43.5–46.5 mm (1.713–1.831 in)
5. Tighten the parking brake cable locknut.
6. Turn the parking brake pad adjusting bolt in or out to adjust the clearance between the parking brake pads and the brake disc.
1. Lower level
Specified brake fluid:
DOT 4
EWS00821
Improper maintenance can result in loss
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. Close the shroud.
Checking the brake fluid level
Before riding, check that the brake fluid is above the lower level. Check the brake fluid level with the top of the reservoir level. Re­plenish the brake fluid if necessary.
of braking ability. Observe these precau­tions: Insufficient brake fluid may allow air to
enter the brake system, reducing brak­ing performance.
Clean the filler cap before removing.
Use only DOT 4 brake fluid from a sealed container.
Use only the specified brake fluid; other-
wise, the rubber seals may deteriorate, causing leakage.
Refill with the same type of brake fluid.
Adding a brake fluid other than DOT 4 may result in a harmful chemical reac­tion.
Be careful that water does not enter the
brake fluid reservoir when refilling. Wa­ter will significantly lower the boiling point of the fluid and may result in vapor lock.
62
Page 71
Periodic maintenance and adjustment
NOTICE
WARNING
NOTICE
1
2
1
ECS01051
Brake fluid may damage painted surfaces or plastic parts. Always clean up spilled fluid immediately.
As the brake pads wear, it is normal for the brake fluid level to gradually go down. A low brake fluid level may indicate worn brake pads and/or brake system leakage; therefore, be sure to check the brake pads for wear and the brake system for leakage. If the brake flu­id level goes down suddenly, have a Yamaha dealer check the cause before further riding.
Changing the brake fluid
EWS00472
Make sure that the brake fluid and the fol­lowing parts are replaced by a Yamaha dealer.
Brake fluid replacement is necessary when the following components are replaced dur­ing the periodic maintenance or if they are damaged or leaking. All oil seals of the master cylinder and cali-
per cylinder
The brake hose
ESU14281

Extrovert drive sprocket

Check the extrovert drive sprocket for wear and damage. Replace if necessary.
1. Drive sprocket tooth
2. Drive sprocket tooth width
ESU14291

Skis and ski runners

Checking the skis and ski runners
Check the skis and ski runners for wear and damage. Replace if necessary.
ECS00561
Avoid scratching the skis when loading and unloading the snowmobile, when rid­ing in areas with little or no snow, or on sharp edges such as concrete, curbs, etc. This will wear or damage the skis.
For EUROPE
To measure the drive sprocket wear
Measure the drive sprocket tooth width. If the tooth width is less than 28 mm (1.10 in), re­place the drive sprocket.
1. Ski runner wear limit
63
Page 72
Periodic maintenance and adjustment
1
2
1
3
2
1
4
2
2
1. Ski wear limit
2. Ski runner
Ski runner wear limit:
8.0 mm (0.31 in)
Ski wear limit:
24.0 mm (0.94 in)
For RUSSIA
1. Ski wear limit (front)
2. Ski runner
3. Ski wear limit (center)
4. Ski wear limit (rear)
1. Ski runner wear limit
64
Ski runner wear limit:
8.0 mm (0.31 in)
Ski wear limit (front):
7.0 mm (0.28 in)
Ski wear limit (center):
6.0 mm (0.24 in)
Ski wear limit (rear):
12.0 mm (0.47 in)
Aligning the skis
1. Turn the handlebar so the skis face straight ahead.
2. Check the following for ski alignment:
Skis are facing forward.Ski toe-out (distance A – distance B) is
within specification.
Page 73
TIP
1. Distance A
2. Distance B
Periodic maintenance and adjustment
To adjust the handlebar height
1. Remove the handlebar cover.
Ski toe-out (distance A – distance B):
0.0–15.0 mm (0.00–0.59 in)
Move the front tip of each ski fully inward be­fore measuring or aligning.
3. If the alignment is not correct, consult a Yamaha dealer.
ESU12165

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.
1. Handlebar cover
2. Loosen the handlebar bolts.
1. Handlebar bolt
3. Move the handlebar up or down to adjust the handlebar height to the desired posi­tion. NOTICE: Make sure that the pro-
jection on the handlebar is not installed into the area shown.
[ECS00572]
If excessive free play is felt, consult a Yamaha dealer.
65
Page 74
Periodic maintenance and adjustment
WARNING
WARNING
ESU12177

Drive track and slide runners

Drive track
EWS00482
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.
1. Area where projection cannot be installed
4. Tighten the front handlebar bolts to the specified torque, and then tighten the rear handlebar bolts to the specified torque. NOTICE: Make sure each han-
dlebar holder is installed so that the smaller gap is facing forward.
[ECS00583]
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.
1. Forward
2. Small gap
Handlebar bolt tightening torque:
23 Nm (2.3 m·kgf, 17 ft·lbf)
5. Install the handlebar cover.
66
Checking the drive track
EWS00491
Do not operate the snowmobile if you find damage to the drive track, or if it has been maladjusted. Drive track damage or failure could result in loss of braking ability and snowmobile control, which could cause an accident.
Check the drive track alignment and deflec­tion, and check the track for wear and dam­age.
Page 75
Periodic maintenance and adjustment
TIP
1
2
Adjust or replace if necessary. (See the fol­lowing section for more details.)
1. Spring scale
Checking the drive track alignment
1. Lift the rear of the snowmobile onto a suitable stand to raise the drive track off the ground.
2. Start the engine and rotate the drive track one or two turns. Stop the engine.
3. Check the drive track alignment with the slide runners. If the alignment is incor­rect, adjust the drive track.
1. 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).
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.
67
Page 76
Periodic maintenance and adjustment
Shifted to right
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
Turn in Tur n o u t
Shifted to left
1. Forward
2. Gap
3. Slide runner
4. Drive track
5. Slide metal
Shifted to left
1. Forward
2. Gap
3. Slide runner
4. Drive track
5. Slide metal
5. Adjust the drive track deflection to spec­ification. NOTICE: The right and left ad-
justing nuts should be turned an equal amount.
Drive track
deflection
Left adjusting nut
Right adjust­ing nut
[ECS00593]
More than
specified
Turn in Turn out
Turn in Turn out
Less than
specified
68
Page 77
Periodic maintenance and adjustment
NOTICE
WARNING
TIP
12
1
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
Slide runner wear limit height:
10.5 mm (0.41 in)
EWS00512
Do not grease the throttle cable because it could become frozen, which could cause loss of control. Apply a dab of grease onto the cable end only.
For parts equipped with a grease nipple, use a grease gun.
Lubricants:
Brake lever:
Silicone grease
Other lubrication points:
Low-temperature grease
1. Lubrication point
ECS00351
Ride on fresh snow frequently. Operating on ice or hard-packed snow will rapidly wear the slide runners.
ESU12199

Lubrication

Lubricate the following points with the speci­fied grease.
1. Throttle cable end
69
Page 78
Periodic maintenance and adjustment
1
1
11
1
2
1. Grease nipple
1. Grease nipple
1. Grease nipple
ESU12213

Replacing a headlight bulb

1. Open the shroud.
2. Disconnect the headlight coupler.
3. Remove the bulb holder cover.
1. Headlight coupler
2. Bulb holder cover
4. Unhook the bulb holder, and then re­move the burnt-out bulb.
1. Bulb holder
5. Install the 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.
[ECS00622]
70
Page 79
Periodic maintenance and adjustment
WARNING
1
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. Close the shroud.
ESU12251

Adjusting the headlight beams

1. Open the shroud.
2. Remove the locking pin.
1. Locking pin
3. 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 leftDirection (b): Up and to the rightDirection (c): Down and to the rightDirection (d): Up and to the left
1. Headlight beam adjusting screw
4. Install the locking pin, and then close the shroud.
ESU12291

Fittings and fasteners

Check the tightness of the fittings and fasten­ers. Tighten in proper sequence and torque if necessary.
ESU14021

Battery

The battery is located under the air filter case. (See page 72.) This model is equipped with a VRLA (Valve Regulated Lead Acid) battery. There is no need to check the electrolyte or to add dis­tilled water. However, the battery lead con­nections need to be checked and, if necessary, tightened.
EWS00541
Battery electrolyte is poisonous and dan­gerous. It contains sulfuric acid and can cause severe burns. Avoid contact with skin, eyes, or clothing. ANTIDOTE:
EXTERNAL: Flush with water.INTERNAL: Drink large quantities of wa-
ter or milk. Follow with milk of magne­sia, beaten egg, or vegetable oil. Call physician immediately.
EYES: Flush with water for 15 minutes
and get prompt medical attention.
71
Page 80
Periodic maintenance and adjustment
WARNING
NOTICE
WARNING
NOTICE
Batteries produce explosive gases. Keep sparks, flame, cigarettes, etc. away. Venti­late when charging or using in an enclosed space. Always shield your eyes when working near batteries. KEEP OUT OF THE REACH OF CHILDREN.
Charge or have a Yamaha dealer charge the battery as soon as possible if it seems to have discharged. Keep in mind that the bat­tery tends to discharge more quickly if the snowmobile is equipped with electrical ac­cessories.
EWS00611
Never smoke around the battery while it
is being charged. Sparks may ignite the hydrogen gas created by the battery.
Disconnect the negative lead first, then
the positive lead from the battery.
Connect the positive lead first, then the
negative lead to the battery when install­ing the battery.
Never connect the battery to or discon-
nect it from the snowmobile while it is being charged. Sparks may ignite the hydrogen gas created by the battery.
Make sure that the battery terminals are
tight.
ECS00844
ESU12324

Replacing a fuse

EWS00551
Be sure to use the specified fuse. A wrong fuse could cause electrical system dam­age or A FIRE HAZARD.
ECS00632
Be sure to turn the main switch to the off position and disconnect the negative bat­tery lead to prevent accidental short-cir­cuiting.
1. Open the shroud.
2. Unhook the air filter case fastener.
1. Air filter case fastener
3. Loosen the joint clamp screws.
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.
72
1. Joint clamp screw
4. Slide the oil tank breather hose clamp away from the air filter case, and then disconnect the oil tank breather hose.
Page 81
Periodic maintenance and adjustment
5. Lift up the air filter case, slide the crank­case breather hose clamp (air filter case side) down, disconnect the crankcase breather hose from the air filter case, and then remove the air filter case.
1. Oil tank breather hose clamp
2. Oil tank breather hose
3. Crankcase breather hose clamp (air filter case side)
4. Crankcase breather hose
6. Disconnect the negative battery lead.
7. Replace the blown fuse with one of the proper amperage.
1. “HEAD” (headlight) fuse
2. “SIG” (signaling system) fuse
3. “DC TERM” (auxiliary DC jack) fuse
4. “C/W” (carburetor warmer) fuse
5. “IGN” (ignition) fuse
6. “FAN” (radiator fan) fuse
7. Spare fuse
1. Main fuse
2. Spare main fuse
73
Page 82
Periodic maintenance and adjustment
TIP
Specified fuses:
Main fuse:
30.0 A
Spare main fuse:
30.0 A
Headlight fuse:
20.0 A
Signaling system fuse:
10.0 A
Auxiliary DC jack fuse:
3.0 A
Carburetor warmer fuse:
20.0 A
Ignition fuse:
15.0 A
Radiator fan fuse:
15.0 A
Spare fuses:
20.0 A, 15.0 A, 10.0 A, 3.0 A
8. Connect the negative battery lead.
9. Install the air filter case by reversing the removal steps. NOTICE: Be sure to
connect the breather hoses securely when installing the air filter case.
[ECS00642]
10. Close the shroud.
If the fuse immediately blows again, ask a Yamaha dealer to inspect the snowmobile.
74
Page 83
ESU12376
WARNING
1
Engine turns over but does not start
1. Fuel system No fuel supplied to combustion cham-
ber
•No fuel in tank: Supply fuel.
• Clogged fuel line: Clean fuel line.
• Clogged carburetor: Clean carburetor.
Fuel supplied to combustion chamber
• Flooded engine (too much choke): Crank engine with throttle open or wipe spark plugs dry.
2. Electrical system Poor spark or no spark
• Spark plugs are dirty with carbon or are wet: Remove carbon or wipe spark plugs dry. Replace if necessary.
• Faulty ignition system: Ask a Yamaha dealer to check.
• T.O.R.S. malfunction: Disconnect throttle switch connec­tors and connect wire harness con­nectors together to bypass T.O.R.S.
WARNING! Before bypassing the T.O.R.S., make sure that the throt­tle returns properly to the fully closed position. The T.O.R.S. is an important safety device; in the case of a malfunction, take the snowmobile to a Yamaha dealer immediately for repair.
[EWS00562]

Troubleshooting

1. Throttle switch connector
3. Compression Insufficient
• Loose cylinder head nuts: Tighten nuts properly.
• Worn or damaged gasket: Replace gasket.
• Worn or damaged piston and cylin­der: Ask a Yamaha dealer to check.
Discharged battery
If the battery is discharged, the engine can be started using a fully-charged 12-volt battery and jumper cables. Two connecting leads have been provided for jump-starting the snowmobile. Due to the rubber engine mounting, the snowmobile frame is not a suit­able grounding point for jump-starting the en­gine.
EWS00571
Connect the jumper cables only to the
connecting lead terminals. Do not con­nect them to the frame or any wire or other lead.
75
Page 84
Troubleshooting
NOTICE
When connecting the jumper cables, do
not contact the jumper cables or con­necting lead terminals to each other or to the frame or any metal part of the snowmobile. This can cause electrical system damage or A FIRE HAZARD.
Be sure to pull the lead covers back over
the terminals completely. If the termi­nals are exposed, they could come into contact with the frame or a metal part of the snowmobile and this can cause electrical system damage or A FIRE HAZARD.
ECS00651
Use the connecting leads to jump-start the snowmobile only. Do not use the con­necting leads for any other purpose.
To start the engine using the booster battery
1. Apply the parking brake and turn the key to the off position.
2. Open the shroud.
3. Remove the red (+) connecting lead from the lead holder and move it away from the black (–) connecting lead. NOTICE:
Be sure to connect the red (+) jumper cable to the red (+) connecting lead and the black (–) jumper cable to the black (–) connecting lead. Do not re­verse the connections.
[ECS00662]
4. Pull the red (+) connecting lead cover to expose the terminal through the slit in the cover, and then connect the red (+) jumper cable to the red (+) connecting lead.
76
5. Connect the other end of the red (+) jumper cable to the positive (+) terminal of the booster battery.
6. Connect the black (–) jumper cable to the negative (–) terminal of the booster bat­tery.
Page 85
Troubleshooting
TIP
7. Pull the black (–) connecting lead cover to expose the terminal through the slit in the cover, and then connect the black (–) jumper cable to the black (–) connecting lead.
8. Start the engine.
9. Disconnect the black (–) jumper cable from the black (–) connecting lead, and then pull the cover completely over the lead terminal.
10. Disconnect the black (–) jumper cable from the negative (–) terminal of the bat­tery used to jump-start the engine.
11. Disconnect the red (+) jumper cable from the positive (+) terminal of the battery used to jump-start the engine.
12. Disconnect the red (+) jumper cable from the red (+) connecting lead, and then pull the cover completely over the lead termi­nal.
13. Install the red (+) connecting lead into the lead holder.
14. Close the shroud.
Make sure that both the red (+) connecting lead and the black (–) connecting lead are seated securely in the lead holders.
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.
Seized engine: Seizure is caused by poor
lubrication, inadequate fuel, or an air leak. Ask a Yamaha dealer to check.
“Hydrostatic lock” occurs when fuel has
filled cylinders during transportation of ve­hicle: Remove spark plugs and turn engine over several times with ignition off to expel excess fuel. 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.
Incorrect carburetor jetting for altitude or
temperature: Ask a Yamaha dealer to check.
Improper fuel flow: See “Engine turns over
but does not start–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.
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Troubleshooting
Clogged fuel system: See “Engine turns
over but does not start–Fuel system” above.
Malfunctioning T.O.R.S.: See “Engine turns
over but does not start–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.
Worn or sticking primary sheave assembly:
Ask a Yamaha dealer to check.
Worn or sticking secondary sheave assem-
bly: Ask a Yamaha dealer to check.
Noise or excessive vibration in drive chain and sprockets
Broken V-belt clutch components: Ask a
Yamaha dealer to check.
Worn or damaged bearings: Ask a Yamaha
dealer to check.
Worn or damaged V-belt with flat spots:
Replace.
Worn or damaged idler wheels or shafts:
Ask a Yamaha dealer to check.
Worn or damaged drive track: Ask a
Yamaha dealer to check.
V-belt 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.
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Page 87

Storage

NOTICE
ESU12427
Long-term storage of your snowmobile will require some preventive procedures to guard against deterioration.
Engine
Perform the following steps to protect the cylinders, piston rings, etc., from corrosion.
1. Remove the spark plug caps and spark plugs.
2. Pour a teaspoonful of engine oil into each spark plug bore.
3. Install the spark plug caps onto the spark plugs, and then place the spark plugs on the cylinder head so that the electrodes are grounded. (This will limit sparking during the next step.)
4. Turn the engine over several times with the starter. (This will coat the cylinder walls with oil.) WARNING! To prevent
damage or injury from sparking, make sure to ground the spark plug elec­trodes while turning the engine over.
[EWS00602]
5. Remove the spark plug caps from the spark plugs, and then install the spark plugs and the spark plug caps.
Fuel
Drain the fuel tank and carburetor float bowls. This will prevent fuel deposits from building up.
Chassis
1. Lubricate all specified points with grease. (See page 69 for detailed infor­mation about the lubrication points.)
2. Loosen the drive track and block up the chassis so that the track is suspended above the ground.
3. Clean the exterior of the snowmobile and apply a rust inhibitor.
4. Store the snowmobile in a dry, well-ven­tilated place with a porous cover placed over it.
5. Keep the snowmobile on a level surface during storage or while transporting.
ECS00871
Improper cleaning can damage plastic
parts such as shroud, covers, wind­shields, headlight lenses, meter lenses, etc. Use only a soft, clean cloth or sponge with mild detergent and water to clean plastic.
Do not use any harsh chemical products
on plastic parts. Be sure to avoid using cloths or sponges which have been in contact with strong or abrasive cleaning products, solvent or thinner, fuel (gaso­line), rust removers or inhibitors, brake fluid, antifreeze or electrolyte.
Do not use high-pressure washers or
steam-jet cleaners since they cause wa­ter seepage and deterioration in the fol­lowing areas: seals (of the slide rail suspension, front suspension and brakes), electric components (couplers, connectors, instruments, switches and lights), breather hoses and vents.
For snowmobiles equipped with a wind-
shield: Do not use strong cleaners or hard sponges as they will cause dulling or scratching. Some cleaning com­pounds for plastic may leave scratches on the windshield. Test the product on a small hidden part of the windshield to make sure that it does not leave any marks. If the windshield is scratched, use a quality plastic polishing com­pound after washing.
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Storage
TIP
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.
Before installing the battery, have a Yamaha dealer inspect and fully charge it.
[ECS00692]
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Page 89

Specifications

ESU1246F
Dimensions:
Overall length:
3260 mm (128.3 in) (RUS) 3270 mm (128.7 in) (FIN)(SWE)
Overall width:
1165 mm (45.9 in) (FIN)(SWE) 1215 mm (47.8 in) (RUS)
Overall height:
1420 mm (55.9 in)
Weight:
Mass in running order:
388.0 kg (855 lb)
Ski stance:
990 mm (39.0 in)
Engine:
Type:
Liquid cooled 4-stroke, 12 valves
Cylinder arrangement:
Inline 3-cylinder
Displacement:
973 cm³
Bore × stroke:
79.0 × 66.2 mm (3.11 × 2.61 in)
Idling speed:
1300–1500 r/min
Engine oil:
Recommended grade:
API service SG type or higher, JASO standard MA
Recommended brand:
YAMALUBE
Type:
SAE 0W-30
Carburetor:
Model × quantity:
CVK40 × 3
Fuel:
Recommended fuel:
Min 91 RON UNLEADED GASOLINE ONLY (RUS) Min 95 RON UNLEADED GASOLINE ONLY (FIN)(SWE)
Minimum research octane:
91 (RUS) 95 (FIN)(SWE)
Starting system:
Electric starter
Noise level and vibration level:
Noise level (77/311/EEC):
87 dB(A)@4250 r/min (FIN)(SWE)
A-weighted sound power level:
99 dB(A)@4250 r/min (FIN)(SWE)
Vibration on seat (EN1032, ISO 5008):
Not exceed 0.5 m/s² (FIN)(SWE)
Vibration on handlebar (EN1032, ISO 5008):
Not exceed 2.5 m/s² (FIN)(SWE)
Chassis:
Drive track:
Material:
Molded rubber, fiberglass-rod reinforced
Type:
Extrovert drive type
Width:
500 mm (19.7 in)
Deflection:
30.0–35.0 mm (1.18–1.38 in)
Length on ground:
1104 mm (43.5 in)
Rear suspension:
Type:
Slide rail suspension
Track sprocket wheel:
Material:
Polyethylene
Number of teeth:
7
Transmission:
Clutch type:
Automatic centrifugal engagement
Overall reduction ratio:
7.60–2.00 : 1
Overall reduction ratio [L]:
10.16–2.67 : 1
Sheave distance:
267.0–270.0 mm (10.51–10.63 in)
Sheave offset:
13.5–16.5 mm (0.53–0.65 in) Engagement speed (Subject to change according to elevation settings.):
2200–2600 r/min Shift speed [Subject to change according to elevation settings. Usually achieved after approximately 800 m (0.5 mi) traveled.]:
8000–8750 r/min Drive chain type:
Silent chain enclosed in oil bath
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Page 90
Specifications
Drive chain housing oil:
Type:
SAE 75W or 80W API GL-3 Gear oil
Capacity:
0.35 L (0.37 US qt, 0.31 Imp.qt)
Reverse system:
Yes
Primary reduction ratio:
3.80–1.00 : 1
Secondary reduction ratio [D]:
40/20 (2.00)
Secondary reduction ratio [L]:
40/20 × 29/47 × 52/24 (2.67)
Secondary reduction ratio [R]:
2.46
Fuel tank capacity:
40.0 L (10.57 US gal, 8.80 Imp.gal)
Engine oil quantity:
With oil filter cartridge replacement:
3.0 L (3.17 US qt, 2.64 Imp.qt)
Without oil filter cartridge replacement:
2.8 L (2.96 US qt, 2.46 Imp.qt)
Total amount:
3.7 L (3.91 US qt, 3.26 Imp.qt)
Brake:
Type:
Hydraulic disc type (ventilated disc)
Operation:
Handle lever, left-hand operated
Throttle:
Operation:
Handle lever, right-hand operated
Electrical system:
Ignition system:
TCI
Spark plug:
Manufacturer:
NGK
Model:
CR8E
Gap:
0.7–0.8 mm (0.028–0.031 in)
Battery:
Model:
YTX20L-BS
Voltage, capacity:
12 V, 18.0 Ah
Ten-hour rate amperage:
1.8 A
Bulb voltage, wattage × quantity:
Headlight:
12 V, 60/55 W × 2
Headlight bulb type:
Halogen bulb
Tail/brake light:
12 V, 5/21 W × 1
Meter lighting:
14 V, 50 mA × 6
High beam indicator light:
14 V, 80 mA × 1
Warning light:
14 V, 80 mA × 1
Low coolant temperature indicator light:
14 V, 80 mA × 1
ESU14251
For EUR only
The figures quoted are emission levels and are not necessarily safe working levels. Whilst there is a correlation between the emission and exposure levels, this cannot be used reliably to determine whether or not fur­ther precautions are required. Factors that in­fluence the actual level of exposure of work­force include the characteristics of the work room, the other sources of noise, etc. i.e. the number of machines and other adjacent pro­cesses, and the length of time for which an operator is exposed to the noise. Also the permissible exposure level can vary from country. This information, however, will en­able the user of the machine to make a better evaluation of the hazard and risk.
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ESU14221

Identification number records

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

Consumer information

Frame serial number
The frame serial number is the seventeen­digit number stamped on the frame of the snowmobile.
1. Frame serial number
Engine serial number (Primary ID)
The engine serial number is stamped in the location as shown.
1. Engine serial number
ESU12492

WARRANTY

If doubt exists as to the cause and cure of a problem, consult your authorized Yamaha snowmobile dealer. This is especially impor­tant during the warranty period, as unauthor­ized, haphazard, or improper repairs can void the warranty. Remember that your authorized Yamaha dealer has the special tools, tech­niques, and spare parts necessary for proper repair of your snowmobile. Always consult your Yamaha dealer if you are in doubt as to proper specifications and/or maintenance procedures. Occasionally, printing errors or production changes will re­sult in incorrect documentation in this manu­al. Until you are thoroughly familiar with this model, consult your Yamaha dealer before attempting any maintenance. Should further maintenance or service information be de­sired, service manuals can be purchased from your local authorized Yamaha snowmo­bile dealer.
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Page 92

Index

A
Air filter, checking ....................................49
Auxiliary DC jack...................................... 20
B
Battery...................................................... 71
Brake and parking brake.......................... 60
Brake lever ............................................... 20
Break-in.................................................... 33
C
Carburetor coolant shut-off lever............. 22
Carburetors.............................................. 50
Center shock absorber and rear torsion
springs, adjusting spring preload......... 28
Coolant temperature warning indicator ... 18
Cooling system ........................................ 55
D
Drive chain housing.................................. 59
Drive guard............................................... 22
Drive track and slide runners ...................66
Drive track life, maximizing...................... 37
Driving...................................................... 38
E
Engine idling speed, adjusting ................. 47
Engine oil and oil filter cartridge............... 50
Engine stop switch................................... 19
Extrovert drive sprocket........................... 63
F
Fittings and fasteners............................... 71
Fuel .......................................................... 26
Fuel level warning indicator ..................... 17
Fuel meter and grip/thumb warmer level
indicator................................................ 16
Fuse, replacing......................................... 72
G
General maintenance and lubrication
chart...................................................... 43
Grip/thumb warmer adjusting switch....... 19
H
Headlight beam switch ............................ 19
Headlight beams, adjusting ..................... 71
Headlight bulb, replacing ......................... 70
High beam indicator light......................... 15
High-altitude settings............................... 50
I
Identification numbers ............................. 83
L
Location of the important labels ................ 1
Louvers .................................................... 23
Low coolant temperature indicator
light .......................................................15
Lubrication ............................................... 69
M
Main switch ..............................................13
Multi-function meter unit.......................... 14
O
Oil level warning indicator........................ 18
P
Parking brake lever ..................................21
Part locations ...........................................11
Passenger grip warmer switch.................23
Periodic maintenance chart for the
emission control system....................... 42
Pre-operation check list...........................30
R
Rear storage area and rear carrier ...........24
Recommended equipment ...................... 45
Riding your snowmobile........................... 33
S
Safety information...................................... 9
Self-diagnosis device............................... 18
Shift lever .................................................21
Shock absorbers, front, adjusting spring
preload.................................................. 27
Shroud and right side cover, opening
and closing, removing and installing ....45
Skis and ski runners.................................63
Sliding frame extension, adjusting
spring preload.......................................29
Spark plugs, checking ............................. 46
Specifications........................................... 81
Starter (choke) lever.................................13
Starting the engine................................... 32
Steering system .......................................65
Stopping the engine.................................39
Storage..................................................... 79
Storage areas........................................... 23
Storage compartment..............................23
Storage pouches......................................24
Strap......................................................... 38
Suspension .............................................. 27
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Page 93
T
Throttle lever ............................................ 13
Throttle lever free play, adjusting............. 47
Throttle override system (T.O.R.S.) .......... 14
Throttle override system (T.O.R.S.),
checking ............................................... 48
Tool kit ..................................................... 45
Tow hitch bracket ....................................25
Transporting............................................. 39
Troubleshooting....................................... 75
V
Valve clearance........................................ 50
V-belt........................................................ 56
V-belt holders........................................... 22
Index
85
Page 94
Printed in Japan
2014.04-0.3×1 CR
Printed on recycled paper
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