Owners Manual
Page 5
... control system ...34 General maintenance and lubrication chart ...36 Tool kit ...38 Removing and installing the shroud and covers ...38 Checking the spark plugs ...40 Adjusting the engine idling speed ...41 Adjusting the throttle cable free play ...41 Checking the throttle override system (T.O.R.S.) ...41 Checking the air filter ...42 Carburetors ...44 High-altitude settings ...44 Valve clearance ...44 Engine oil and oil filter cartridge ...45 Cooling system ...48 V-belt ...50 Drive chain...
... control system ...34 General maintenance and lubrication chart ...36 Tool kit ...38 Removing and installing the shroud and covers ...38 Checking the spark plugs ...40 Adjusting the engine idling speed ...41 Adjusting the throttle cable free play ...41 Checking the throttle override system (T.O.R.S.) ...41 Checking the air filter ...42 Carburetors ...44 High-altitude settings ...44 Valve clearance ...44 Engine oil and oil filter cartridge ...45 Cooling system ...48 V-belt ...50 Drive chain...
Owners Manual
Page 9
... snow. Never drive the snowmobile with another vehicle. There may result if you ignore any control or function you do not understand. Always ride with all labels. Apply the parking brake before starting the engine. This may need help if you run out of fuel, have an ... your snowmobile G G Read the Owner's Manual and all of control. Hitting a rock or stump, or running into wires could collide with the parking brake applied. Safety information ESU10183 G As the vehicle's owner, you are prohibited. Perform the pre-operation checks each time you must know and use the...
... snow. Never drive the snowmobile with another vehicle. There may result if you ignore any control or function you do not understand. Always ride with all labels. Apply the parking brake before starting the engine. This may need help if you run out of fuel, have an ... your snowmobile G G Read the Owner's Manual and all of control. Hitting a rock or stump, or running into wires could collide with the parking brake applied. Safety information ESU10183 G As the vehicle's owner, you are prohibited. Perform the pre-operation checks each time you must know and use the...
Owners Manual
Page 10
... its left side for Yamaha vehicles. Avoid carbon monoxide poisoning All engine exhaust contains carbon monoxide, a deadly gas. Maintenance and storage G G G G G Genuine Yamaha Accessories Choosing accessories for hours or days in a position to cool off before storing the snowmobile in the fuel tank inside a building where ignition sources are available only from the fuel breather hose. Many companies with fans or open flame, sparks, clothes dryers, and...
... its left side for Yamaha vehicles. Avoid carbon monoxide poisoning All engine exhaust contains carbon monoxide, a deadly gas. Maintenance and storage G G G G G Genuine Yamaha Accessories Choosing accessories for hours or days in a position to cool off before storing the snowmobile in the fuel tank inside a building where ignition sources are available only from the fuel breather hose. Many companies with fans or open flame, sparks, clothes dryers, and...
Owners Manual
Page 25
.... Control functions in poor damping performance. G Do not tamper with a pump octane number [(R+M)/2] of 86 or higher, or a research octane number of terrain or riding conditions. The fuel tank should be required to use alcohol deicers or water absorbing additives with suspension adjustments, have a Yamaha dealer make these adjustments. 19 G Do not deform or damage the cylinders in any service. Softer...
.... Control functions in poor damping performance. G Do not tamper with a pump octane number [(R+M)/2] of 86 or higher, or a research octane number of terrain or riding conditions. The fuel tank should be required to use alcohol deicers or water absorbing additives with suspension adjustments, have a Yamaha dealer make these adjustments. 19 G Do not deform or damage the cylinders in any service. Softer...
Owners Manual
Page 33
... with your snowmobile and all warning and notice labels on page 24. You should occur during operation. Before operating the snowmobile, read the Snowmobiler's Safety Handbook that this area before attempting more reliable snowmobile. Also, read this Owner's Manual completely and understand the operation of the controls. A snowmobile is a rider active vehicle, and your riding position and...
... with your snowmobile and all warning and notice labels on page 24. You should occur during operation. Before operating the snowmobile, read the Snowmobiler's Safety Handbook that this area before attempting more reliable snowmobile. Also, read this Owner's Manual completely and understand the operation of the controls. A snowmobile is a rider active vehicle, and your riding position and...
Owners Manual
Page 34
...] Braking EWS00220 WARNING G G Many surfaces such as abrupt throttle changes, excessive braking, incorrect body movements, or too much longer stopping distances. When slowing down and begin to perform it at low speeds many times, in a large flat area with the operation of your snowmobile. This procedure should be able to turn . Follow these instructions to begin decelerating early. Once the engine...
...] Braking EWS00220 WARNING G G Many surfaces such as abrupt throttle changes, excessive braking, incorrect body movements, or too much longer stopping distances. When slowing down and begin to perform it at low speeds many times, in a large flat area with the operation of your snowmobile. This procedure should be able to turn . Follow these instructions to begin decelerating early. Once the engine...
Owners Manual
Page 35
... balance. This will cause the drive track to prevent track slippage. Stop the engine and set the parking brake. Riding downhill EWS00240 WARNING Use extra caution when applying the brake during a descent. Traversing a slope requires you have developed your weight on the running board. A recommended riding position is pointed downhill, mount your weight to kneel with light pressure. Do not try steeper...
... balance. This will cause the drive track to prevent track slippage. Stop the engine and set the parking brake. Riding downhill EWS00240 WARNING Use extra caution when applying the brake during a descent. Traversing a slope requires you have developed your weight on the running board. A recommended riding position is pointed downhill, mount your weight to kneel with light pressure. Do not try steeper...
Owners Manual
Page 40
.... Yamaha dealers are explained on body parts or clothing, and electrical parts that can cause shocks or fires. Periodic maintenance and adjustment ESU11451 Periodic inspection, adjustment, and lubrication will keep your snowmobile in order to proper engine operation and maximum performance. EWS00341 WARNING Failure to perform these particular services. Proper periodic maintenance of the vehicle owner/operator. These controls not only function to ensure cleaner air...
.... Yamaha dealers are explained on body parts or clothing, and electrical parts that can cause shocks or fires. Periodic maintenance and adjustment ESU11451 Periodic inspection, adjustment, and lubrication will keep your snowmobile in order to proper engine operation and maximum performance. EWS00341 WARNING Failure to perform these particular services. Proper periodic maintenance of the vehicle owner/operator. These controls not only function to ensure cleaner air...
Owners Manual
Page 46
.... If a spark plug shows a distinctly different color, there could indicate an intake track air leak or carburetion problem for a snowmobile that cylinder. Instead, take the snowmobile to diagnose such problems yourself. Spark plug gap 2. Also, if the reach is a medium to specification. Spark plug gap: 0.7-0.8 mm (0.028-0.031 in several different thread lengths. WARNING Be sure to use a spark plug with a wire thickness gauge and adjust to a light tan color for that...
.... If a spark plug shows a distinctly different color, there could indicate an intake track air leak or carburetion problem for a snowmobile that cylinder. Instead, take the snowmobile to diagnose such problems yourself. Spark plug gap 2. Also, if the reach is a medium to specification. Spark plug gap: 0.7-0.8 mm (0.028-0.031 in several different thread lengths. WARNING Be sure to use a spark plug with a wire thickness gauge and adjust to a light tan color for that...
Owners Manual
Page 50
... a Yamaha dealer. Less air means less oxygen available for every 305 m (1000 ft) of the engine and its emission control system, which can cause poor performance. Place the wire harness in improper air-fuel mixture and/or engine noise. ESU11941 Valve clearance The valve clearance changes with proper carburetion. High-altitude settings Operating at high altitude reduces the performance of a gasoline engine about 3% for combustion. 44 Periodic maintenance...
... a Yamaha dealer. Less air means less oxygen available for every 305 m (1000 ft) of the engine and its emission control system, which can cause poor performance. Place the wire harness in improper air-fuel mixture and/or engine noise. ESU11941 Valve clearance The valve clearance changes with proper carburetion. High-altitude settings Operating at high altitude reduces the performance of a gasoline engine about 3% for combustion. 44 Periodic maintenance...
Owners Manual
Page 55
...: Hard water or salt water is harmful to the engine parts. To check the coolant level 1. You may use boiled or distilled water, if soft water is cold. Consult a Yamaha dealer. 1. Place the snowmobile on the cap while turning counterclockwise and remove it reaches the "COLD LEVEL" mark. 2. 49 Bleeding the cooling system The cooling system must be bled of air if the coolant reservoir...
...: Hard water or salt water is harmful to the engine parts. To check the coolant level 1. You may use boiled or distilled water, if soft water is cold. Consult a Yamaha dealer. 1. Place the snowmobile on the cap while turning counterclockwise and remove it reaches the "COLD LEVEL" mark. 2. 49 Bleeding the cooling system The cooling system must be bled of air if the coolant reservoir...
Owners Manual
Page 70
...tank breather hose clamp down, disconnect the oil tank breather hose from the air filter case, and then remove the air filter case. 1. Disconnect the negative battery lead. 64 Replace the blown fuse with one of the proper amperage. 1. Main fuse 2. Spare main fuse 1. Oil tank breather hose clamp 2. Fastener 4. Joint clamp bolt 5. Cylinder head breather hose 2. Oil tank breather hose 1. 2. 3. 4. 5. 6. "HEAD" (headlight) fuse "SIG" (signal) fuse "DC TERM" (auxiliary DC jack) fuse "C/W" (carburetor warmer) fuse "IGN" (ignition) fuse Spare fuse 6. Periodic maintenance...
...tank breather hose clamp down, disconnect the oil tank breather hose from the air filter case, and then remove the air filter case. 1. Disconnect the negative battery lead. 64 Replace the blown fuse with one of the proper amperage. 1. Main fuse 2. Spare main fuse 1. Oil tank breather hose clamp 2. Fastener 4. Joint clamp bolt 5. Cylinder head breather hose 2. Oil tank breather hose 1. 2. 3. 4. 5. 6. "HEAD" (headlight) fuse "SIG" (signal) fuse "DC TERM" (auxiliary DC jack) fuse "C/W" (carburetor warmer) fuse "IGN" (ignition) fuse Spare fuse 6. Periodic maintenance...
Owners Manual
Page 71
... 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 8. 9. Headlight unit bolt tightening torque: 3 Nm (0.3 m·kgf, 2.2 ft·lbf) 65 Connect the headlight couplers and speedometer coupler, and then install the headlight unit, making sure to the specified torque. Install the air filter...
... 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 8. 9. Headlight unit bolt tightening torque: 3 Nm (0.3 m·kgf, 2.2 ft·lbf) 65 Connect the headlight couplers and speedometer coupler, and then install the headlight unit, making sure to the specified torque. Install the air filter...
Owners Manual
Page 72
... grounding point for jump-starting the engine. Replace if necessary. ↓ • Faulty ignition system: Ask a Yamaha dealer to the fully closed position. G [EWS00561] 3. Electrical system G Poor spark or no spark • Spark plugs are wet: Remove carbon or wipe the spark plugs dry. Before bypassing the T.O.R.S., make sure that the throttle returns properly to inspect. ↓ • T.O.R.S. Discharged battery If the battery is an important safety...
... grounding point for jump-starting the engine. Replace if necessary. ↓ • Faulty ignition system: Ask a Yamaha dealer to the fully closed position. G [EWS00561] 3. Electrical system G Poor spark or no spark • Spark plugs are wet: Remove carbon or wipe the spark plugs dry. Before bypassing the T.O.R.S., make sure that the throttle returns properly to inspect. ↓ • T.O.R.S. Discharged battery If the battery is an important safety...
Owners Manual
Page 74
... spark plugs: Replace the spark plugs. Malfunctioning T.O.R.S.: See "Engine turns over several times with the ignition off to inspect. Leaking coolant: Ask a Yamaha dealer to inspect. Troubleshooting 7. Discharged battery: Charge battery or see "Discharged battery" above . Seized engine: Seizure is low G 8. 9. 10. 11. 12. 13. 14. "Hydrostatic lock" occurs when fuel has filled the cylinders when the vehicle has been transported: Remove the spark plugs and turn the engine over but does not start -Fuel system" above . Air...
... spark plugs: Replace the spark plugs. Malfunctioning T.O.R.S.: See "Engine turns over several times with the ignition off to inspect. Leaking coolant: Ask a Yamaha dealer to inspect. Troubleshooting 7. Discharged battery: Charge battery or see "Discharged battery" above . Seized engine: Seizure is low G 8. 9. 10. 11. 12. 13. 14. "Hydrostatic lock" occurs when fuel has filled the cylinders when the vehicle has been transported: Remove the spark plugs and turn the engine over but does not start -Fuel system" above . Air...
Owners Manual
Page 76
.... Test the product on the windshield. Fuel system Add Yamaha Fuel Stabilizer and Conditioner, or an equivalent stabilizer, to the fuel tank to help prevent fuel oxidation and gum and varnish deposits, and to remove the air filter case and squirt oil into the carburetor throats while the engine is needed. Consult a Yamaha dealer if further information is running. For snowmobiles equipped with strong...
.... Test the product on the windshield. Fuel system Add Yamaha Fuel Stabilizer and Conditioner, or an equivalent stabilizer, to the fuel tank to help prevent fuel oxidation and gum and varnish deposits, and to remove the air filter case and squirt oil into the carburetor throats while the engine is needed. Consult a Yamaha dealer if further information is running. For snowmobiles equipped with strong...
Owners Manual
Page 78
...in) Length on ground: RS90GT 768 mm (30.2 in) RS90LT 960 mm (37.8 in) RS90LTGT 960 mm (37.8 in) RS90R 768 mm (30.2 in) Rear suspension: Type: Slide rail suspension Track sprocket wheel: Material: Polyethylene Number of teeth: 9 Transmission: Clutch type: Automatic centrifugal ...Idling speed: 1300-1500 r/min Engine oil: Recommended grade: API service SG type or higher, JASO standard MA Type: YAMALUBE 4 0W-30, 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...
...in) Length on ground: RS90GT 768 mm (30.2 in) RS90LT 960 mm (37.8 in) RS90LTGT 960 mm (37.8 in) RS90R 768 mm (30.2 in) Rear suspension: Type: Slide rail suspension Track sprocket wheel: Material: Polyethylene Number of teeth: 9 Transmission: Clutch type: Automatic centrifugal ...Idling speed: 1300-1500 r/min Engine oil: Recommended grade: API service SG type or higher, JASO standard MA Type: YAMALUBE 4 0W-30, 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...
Owners Manual
Page 81
... Yamaha Motor Corporation, U.S.A. SPECIFIC EXCLUSIONS from the original purchase date 75 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 normal wear or routine maintenance including oil, spark plugs, clutch drive belts, slide runners, and track. All Models...
... Yamaha Motor Corporation, U.S.A. SPECIFIC EXCLUSIONS from the original purchase date 75 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 normal wear or routine maintenance including oil, spark plugs, clutch drive belts, slide runners, and track. All Models...
Owners Manual
Page 83
... contact Yamaha Motor Corporation, U.S.A., for his setup, service and warranty repair work. If the dealer is not able to do so, he is expected to : CUSTOMER SERVICE If your request at the time of all warranty matters are still not satisfied and require additional assistance, please write: YAMAHA MOTOR CORPORATION, U.S.A. Mail to : 1. If a question or problem arises regarding warranty, first contact the owner of...
... contact Yamaha Motor Corporation, U.S.A., for his setup, service and warranty repair work. If the dealer is not able to do so, he is expected to : CUSTOMER SERVICE If your request at the time of all warranty matters are still not satisfied and require additional assistance, please write: YAMAHA MOTOR CORPORATION, U.S.A. Mail to : 1. If a question or problem arises regarding warranty, first contact the owner of...
Owners Manual
Page 85
... A Air filter, checking...42 Auxiliary DC jack ...14 B Battery...62 Brake and parking brake ...54 Brake lever ...15 Break-in...26 C Carburetors ...44 Control rod, adjusting ...22 Coolant temperature warning indicator ...13 Cooling system...48 D Drive chain housing...53 Drive guard...17 Drive track and slide runners ...57 Drive track life, maximizing ...31 Driving ...31 E Engine idling speed, adjusting ...41 Engine oil and oil filter cartridge ...45 Engine overheating prevention system ...8 Engine stop switch ...13 F Fittings and fasteners...62 Fuel ...18 Fuel...
... A Air filter, checking...42 Auxiliary DC jack ...14 B Battery...62 Brake and parking brake ...54 Brake lever ...15 Break-in...26 C Carburetors ...44 Control rod, adjusting ...22 Coolant temperature warning indicator ...13 Cooling system...48 D Drive chain housing...53 Drive guard...17 Drive track and slide runners ...57 Drive track life, maximizing ...31 Driving ...31 E Engine idling speed, adjusting ...41 Engine oil and oil filter cartridge ...45 Engine overheating prevention system ...8 Engine stop switch ...13 F Fittings and fasteners...62 Fuel ...18 Fuel...