Owners Manual
Page 5
... control system ...36 General maintenance and lubrication chart ...38 Tool kit ...40 Removing and installing the shroud and covers ...40 Checking the spark plugs ...42 Adjusting the engine idling speed ...43 Adjusting the throttle cable free play ...43 Checking the throttle override system (T.O.R.S.) ...44 Checking the air filter ...44 Carburetors ...46 High-altitude settings ...46 Valve clearance ...46 Engine oil and oil filter cartridge ...47 Cooling system ...50 V-belt ...52 Drive chain...
... control system ...36 General maintenance and lubrication chart ...38 Tool kit ...40 Removing and installing the shroud and covers ...40 Checking the spark plugs ...42 Adjusting the engine idling speed ...43 Adjusting the throttle cable free play ...43 Checking the throttle override system (T.O.R.S.) ...44 Checking the air filter ...44 Carburetors ...46 High-altitude settings ...46 Valve clearance ...46 Engine oil and oil filter cartridge ...47 Cooling system ...50 V-belt ...52 Drive chain...
Owners Manual
Page 7
... influence of the snowmobile, always perform the pre-operation checks on public streets, roads, or highways. Handle fuel with the parking brake applied. Check the throttle, brake, and steering for several minutes after drinking alcohol or taking drugs. Make sure that the throttle lever moves freely and it returns to stand behind the snowmobile when starting the engine. This may result if...
... influence of the snowmobile, always perform the pre-operation checks on public streets, roads, or highways. Handle fuel with the parking brake applied. Check the throttle, brake, and steering for several minutes after drinking alcohol or taking drugs. Make sure that the throttle lever moves freely and it returns to stand behind the snowmobile when starting the engine. This may result if...
Owners Manual
Page 14
.... Design and specifications are subjected to change without notice. 8 Thumb warmer adjustment switch 7. Throttle lever 8. Engine stop switch 6. Fuel level warning indicator 19. Odometer/tripmeter NOTE: G G The snowmobile you have purchased may differ slightly from those shown in the figures of this manual. Auxiliary DC jack (RS90GT / RS90GTA / RS90LTGT) 11. Starter (choke) lever 12. Parking brake lever 3. Brake lever 2. Shift lever 9. Description 1. Coolant temperature warning indicator 18.
.... Design and specifications are subjected to change without notice. 8 Thumb warmer adjustment switch 7. Throttle lever 8. Engine stop switch 6. Fuel level warning indicator 19. Odometer/tripmeter NOTE: G G The snowmobile you have purchased may differ slightly from those shown in the figures of this manual. Auxiliary DC jack (RS90GT / RS90GTA / RS90LTGT) 11. Starter (choke) lever 12. Parking brake lever 3. Brake lever 2. Shift lever 9. Description 1. Coolant temperature warning indicator 18.
Owners Manual
Page 16
... without a problem before starting the engine. (See page 26.) ESU10321 Run Run Engine overheating prevention system This model is equipped with a system, which prevents overheating when the engine is idling. is released. WARNING Check the throttle, brake, and steering for the clutch engagement speed.) 1. Throttle cable 3. Throttle position sensor (throttle valve closed position) 2. 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...
... without a problem before starting the engine. (See page 26.) ESU10321 Run Run Engine overheating prevention system This model is equipped with a system, which prevents overheating when the engine is idling. is released. WARNING Check the throttle, brake, and steering for the clutch engagement speed.) 1. Throttle cable 3. Throttle position sensor (throttle valve closed position) 2. 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...
Owners Manual
Page 17
Self-diagnosis warning indicator " 3. Throttle position sensor (throttle valve open position) 2. The T.O.R.S. monitors the condition of the throttle position sensor, speedometer assembly, and speed sensor, and will operate if any of the meter display turn on ) 1. Warning light " " 2. Throttle switch (off once. 1. Throttle switch (on and off ) NOTE: G G When the T.O.R.S. Throttle position sensor (throttle valve open position) 2. is malfunctioning. 11 Control functions Running 1. Two-digit code "84" ESU10351 " Trouble Speedometer unit The speedometer unit is ...
Self-diagnosis warning indicator " 3. Throttle position sensor (throttle valve open position) 2. The T.O.R.S. monitors the condition of the throttle position sensor, speedometer assembly, and speed sensor, and will operate if any of the meter display turn on ) 1. Warning light " " 2. Throttle switch (off once. 1. Throttle switch (on and off ) NOTE: G G When the T.O.R.S. Throttle position sensor (throttle valve open position) 2. is malfunctioning. 11 Control functions Running 1. Two-digit code "84" ESU10351 " Trouble Speedometer unit The speedometer unit is ...
Owners Manual
Page 22
... stop switch" " 1. To lower the temperature, press the switch to low beam "LO". 1. Headlight beam switch "LIGHTS" 2. ESU10690 Auxiliary DC jack (RS90GT / RS90GTA / RS90LTGT) The auxiliary DC jack is not running. Open the auxiliary DC jack cap, and then insert the accessory power plug into the jack. Grip/thumb warmer adjustment switch The grip warmer adjustment switch and the thumb warmer adjustment switch control the electrically heated handlebar grips and throttle lever...
... stop switch" " 1. To lower the temperature, press the switch to low beam "LO". 1. Headlight beam switch "LIGHTS" 2. ESU10690 Auxiliary DC jack (RS90GT / RS90GTA / RS90LTGT) The auxiliary DC jack is not running. Open the auxiliary DC jack cap, and then insert the accessory power plug into the jack. Grip/thumb warmer adjustment switch The grip warmer adjustment switch and the thumb warmer adjustment switch control the electrically heated handlebar grips and throttle lever...
Owners Manual
Page 32
... the drive guard mounts for damage. • Make sure that there is not working properly, have serious consequences. and the added safety it is used. Pre-operation checks ESU11070 The condition of exposure to the elements). Therefore, it assures is the owner's responsibility. Vital components can be made each ride. PAGE 20 Engine oil 47 Coolant V-belt Drive guard 50 52 20 Brake 56 Air filter...
... the drive guard mounts for damage. • Make sure that there is not working properly, have serious consequences. and the added safety it is used. Pre-operation checks ESU11070 The condition of exposure to the elements). Therefore, it assures is the owner's responsibility. Vital components can be made each ride. PAGE 20 Engine oil 47 Coolant V-belt Drive guard 50 52 20 Brake 56 Air filter...
Owners Manual
Page 35
... start the engine. Take the time to the safety information on your snowmobile requires skills acquired through practice over a period of operation, the engine oil must be operated normally. EWS00210 WARNING The operator should practice control of the throttle and brake, and master turning techniques in period, immediately have a Yamaha dealer check the snowmobile. Operation Operating your snowmobile for the first time Start the engine...
... start the engine. Take the time to the safety information on your snowmobile requires skills acquired through practice over a period of operation, the engine oil must be operated normally. EWS00210 WARNING The operator should practice control of the throttle and brake, and master turning techniques in period, immediately have a Yamaha dealer check the snowmobile. Operation Operating your snowmobile for the first time Start the engine...
Owners Manual
Page 37
..., and your body weight as needed. If this happens, steer in the direction you wish to keep the clutch engaged while descending the hill. Excessive braking will allow you to use engine compression to help slow the snowmobile, and to shift your snowmobile is...engine, release the parking brake, and descend the hill. EWS00230 Traversing a slope EWS00250 WARNING Traversing slopes is going to slip sideways on the uphill side. 31 As you regain proper balance, gradually steer again in the direction of control. A recommended riding position is important to apply just enough throttle...
..., and your body weight as needed. If this happens, steer in the direction you wish to keep the clutch engaged while descending the hill. Excessive braking will allow you to use engine compression to help slow the snowmobile, and to shift your snowmobile is...engine, release the parking brake, and descend the hill. EWS00230 Traversing a slope EWS00250 WARNING Traversing slopes is going to slip sideways on the uphill side. 31 As you regain proper balance, gradually steer again in the direction of control. A recommended riding position is important to apply just enough throttle...
Owners Manual
Page 42
...) PAGE Spark plugs * * * * * Valve clearance Crankcase breather system Fuel filter Fuel line Idle speed • Check condition. • Adjust gap and clean. • Replace if necessary. • Check and adjust valve clearance when engine is certified (if applicable). The most efficient condition possible. Maintenance, replacement, or repair of the emission control devices and systems may be performed by any repair establishment or individual that is cold. • Check breather hose for...
...) PAGE Spark plugs * * * * * Valve clearance Crankcase breather system Fuel filter Fuel line Idle speed • Check condition. • Adjust gap and clean. • Replace if necessary. • Check and adjust valve clearance when engine is certified (if applicable). The most efficient condition possible. Maintenance, replacement, or repair of the emission control devices and systems may be performed by any repair establishment or individual that is cold. • Check breather hose for...
Owners Manual
Page 48
... around the center electrode. Consult a Yamaha dealer before installing the shroud and covers. Specified spark plug: Manufacturer: NGK Model: CR8E Spark plugs are routed properly before changing to specification. 42 Do not touch the hot muffler and engine during or immediately after operation. Keep your body and clothing away from the spark plug gasket seat to a light tan color for a snowmobile that is easy to diagnose such problems yourself. If...
... around the center electrode. Consult a Yamaha dealer before installing the shroud and covers. Specified spark plug: Manufacturer: NGK Model: CR8E Spark plugs are routed properly before changing to specification. 42 Do not touch the hot muffler and engine during or immediately after operation. Keep your body and clothing away from the spark plug gasket seat to a light tan color for a snowmobile that is easy to diagnose such problems yourself. If...
Owners Manual
Page 52
... with use, resulting in improper air-fuel mixture and/or engine noise. Place the wire harness in the original position, and then fasten the plastic band around it , be adjusted when operating above a high altitude of the problems found in the periodic maintenance chart. ESU11940 CAUTION: The drive chain gears and V-belt clutch should be adjusted by a Yamaha dealer at the intervals specified in...
... with use, resulting in improper air-fuel mixture and/or engine noise. Place the wire harness in the original position, and then fasten the plastic band around it , be adjusted when operating above a high altitude of the problems found in the periodic maintenance chart. ESU11940 CAUTION: The drive chain gears and V-belt clutch should be adjusted by a Yamaha dealer at the intervals specified in...
Owners Manual
Page 56
... the engine oil tank. 17. Continuing to the specified torques. ESU12940 Cooling system The coolant level should be bled of air at the intervals specified in the periodic maintenance and lubrication chart. 50 Make sure that the engine oil drain bolts, the cylinder head cap, and the oil filler cap are installed correctly. 18. ECS00470 CAUTION: If oil is running, immediately turn the engine off and have a Yamaha dealer...
... the engine oil tank. 17. Continuing to the specified torques. ESU12940 Cooling system The coolant level should be bled of air at the intervals specified in the periodic maintenance and lubrication chart. 50 Make sure that the engine oil drain bolts, the cylinder head cap, and the oil filler cap are installed correctly. 18. ECS00470 CAUTION: If oil is running, immediately turn the engine off and have a Yamaha dealer...
Owners Manual
Page 72
...fuse "IGN" (ignition) fuse Spare fuse 1. Spare main fuse Specified fuses: Main fuse: 30.0 A Spare main fuse: 30.0 A "HEAD" (headlight) fuse: 20.0 A "SIG" (signal) fuse: 10.0 A "DC TERM" (auxiliary DC jack) fuse: 3.0 A "C/W" (carburetor warmer) fuse: 20.0 A "IGN" (ignition) fuse: 20.0 A Spare fuses: 20.0 A, 10.0 A, 3.0 A 66 Oil tank breather hose clamp 2. Oil tank breather hose 6. 7. Disconnect the negative battery lead. Main fuse 2. Periodic maintenance 5. Lift up the air filter case, slide the oil tank breather hose clamp down, disconnect the oil tank breather hose from the air...
...fuse "IGN" (ignition) fuse Spare fuse 1. Spare main fuse Specified fuses: Main fuse: 30.0 A Spare main fuse: 30.0 A "HEAD" (headlight) fuse: 20.0 A "SIG" (signal) fuse: 10.0 A "DC TERM" (auxiliary DC jack) fuse: 3.0 A "C/W" (carburetor warmer) fuse: 20.0 A "IGN" (ignition) fuse: 20.0 A Spare fuses: 20.0 A, 10.0 A, 3.0 A 66 Oil tank breather hose clamp 2. Oil tank breather hose 6. 7. Disconnect the negative battery lead. Main fuse 2. Periodic maintenance 5. Lift up the air filter case, slide the oil tank breather hose clamp down, disconnect the oil tank breather hose from the air...
Owners Manual
Page 74
... electrical system damage or A FIRE HAZARD. Fuel system No fuel supplied to combustion chamber • Flooded engine (too much choke): Crank engine with throttle open or wipe the spark plugs dry. 2. 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 the connecting lead terminals. EWS00570 WARNING G G G EWS00560 WARNING...
... electrical system damage or A FIRE HAZARD. Fuel system No fuel supplied to combustion chamber • Flooded engine (too much choke): Crank engine with throttle open or wipe the spark plugs dry. 2. 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 the connecting lead terminals. EWS00570 WARNING G G G EWS00560 WARNING...
Owners Manual
Page 76
... of the battery used to jump start -Electrical system" above . Clogged fuel system: See "Engine turns over the lead terminal. Insufficient coolant: Add coolant. Leaking coolant: Ask a Yamaha dealer to inspect. Improper V-belt: Replace with a discharged battery" above . Discharged battery: Charge battery or see "Starting the engine with the correct Vbelt. "Hydrostatic lock" occurs when fuel has filled the cylinders when the vehicle has been transported: Remove the spark plugs and turn the engine over the...
... of the battery used to jump start -Electrical system" above . Clogged fuel system: See "Engine turns over the lead terminal. Insufficient coolant: Add coolant. Leaking coolant: Ask a Yamaha dealer to inspect. Improper V-belt: Replace with a discharged battery" above . Discharged battery: Charge battery or see "Starting the engine with the correct Vbelt. "Hydrostatic lock" occurs when fuel has filled the cylinders when the vehicle has been transported: Remove the spark plugs and turn the engine over the...
Owners Manual
Page 80
... ) Idling speed: 1300-1500 r/min Engine oil: Recommended grade: API service SG type or higher, JASO standard MA Type: SAE 0W-30 Carburetor: Manufacturer: KEIHIN Model × quantity: CVK40 × 3 Fuel: Type: REGULAR UNLEADED GASOLINE ONLY Minimum pump octane (R+M)/2: 86 Starting system: Electric starter 74 Usually achieved after approximately 800m (0.5 mi) traveled.]: 8250-8750 r/min Drive chain type: Silent chain enclosed in oil bath Dimensions: Overall length...
... ) Idling speed: 1300-1500 r/min Engine oil: Recommended grade: API service SG type or higher, JASO standard MA Type: SAE 0W-30 Carburetor: Manufacturer: KEIHIN Model × quantity: CVK40 × 3 Fuel: Type: REGULAR UNLEADED GASOLINE ONLY Minimum pump octane (R+M)/2: 86 Starting system: Electric starter 74 Usually achieved after approximately 800m (0.5 mi) traveled.]: 8250-8750 r/min Drive chain type: Silent chain enclosed in oil bath Dimensions: Overall length...
Owners Manual
Page 83
... : 1. EMISSION CONTROL SYSTEM WARRANTY Yamaha Motor Corporation, USA also warrants to the ultimate purchaser and each subsequent purchaser of each 2006 and later model Yamaha snowmobile covered by this warranty that the vehicle is designed, built, and equipped so as to conform at the time of parts or accessories that are not covered by Yamaha due to normal wear or routine maintenance including oil, spark plugs, clutch drive belts, slide...
... : 1. EMISSION CONTROL SYSTEM WARRANTY Yamaha Motor Corporation, USA also warrants to the ultimate purchaser and each subsequent purchaser of each 2006 and later model Yamaha snowmobile covered by this warranty that the vehicle is designed, built, and equipped so as to conform at the time of parts or accessories that are not covered by Yamaha due to normal wear or routine maintenance including oil, spark plugs, clutch drive belts, slide...
Owners Manual
Page 85
... is expected to contact Yamaha Motor Corporation, U.S.A., for his setup, service and warranty repair work. Explain the operation, maintenance, and warranty requirements to Yamaha Motor Corporation, U.S.A. A. If you should I contact if I have further questions about this person is compiled from the purchase registrations sent to your satisfaction at the time of sale, and upon your request at the time of your purchase. Whom...
... is expected to contact Yamaha Motor Corporation, U.S.A., for his setup, service and warranty repair work. Explain the operation, maintenance, and warranty requirements to Yamaha Motor Corporation, U.S.A. A. If you should I contact if I have further questions about this person is compiled from the purchase registrations sent to your satisfaction at the time of sale, and upon your request at the time of your purchase. Whom...
Owners Manual
Page 87
... Control rod, adjusting ...24 Coolant temperature warning indicator ...15 Cooling system...50 D Drive chain housing...55 Drive guard...20 Drive track and slide runners ...59 Drive track life, maximizing ...32 Driving ...33 E Engine idling speed, adjusting ...43 Engine oil and oil filter cartridge ...47 Engine overheating prevention system ...10 Engine stop switch ...15 F Fittings and fasteners...64 Fuel ...20 Fuel level warning indicator...14 Fuel meter and grip/ thumb warmer level indicator...13 Fuse, replacing...65 G General maintenance and...
... Control rod, adjusting ...24 Coolant temperature warning indicator ...15 Cooling system...50 D Drive chain housing...55 Drive guard...20 Drive track and slide runners ...59 Drive track life, maximizing ...32 Driving ...33 E Engine idling speed, adjusting ...43 Engine oil and oil filter cartridge ...47 Engine overheating prevention system ...10 Engine stop switch ...15 F Fittings and fasteners...64 Fuel ...20 Fuel level warning indicator...14 Fuel meter and grip/ thumb warmer level indicator...13 Fuse, replacing...65 G General maintenance and...