Owners Manual
Page 6
...17 PRE-OPERATION CHECKS ...6-1 Fuel ...6-1 Engine oil...6-2 Coolant ...6-2 Throttle lever ...6-3 Recoil starter ...6-3 Throttle override system (T.O.R.S.) ...6-3 Brake ...6-4 Brake fluid leakage ...6-5 V-belt ...6-5 Drive guard ...6-5 Drive track ...6-6 51-mm (2.0-in) high-profile pattern drive track...6-6 Slide runners ...6-6 Skis and ski runners ...6-7 Steering system...6-7 Lights ...6-7 Battery ...6-8 Air filter ...6-8 Fittings and fasteners ...6-9 Tool kit and recommended equipment...6-9 OPERATION ...7-1 Starting the engine ...7-1 Emergency engine starting...7-2 Break-in ...7-4 Riding your...
...17 PRE-OPERATION CHECKS ...6-1 Fuel ...6-1 Engine oil...6-2 Coolant ...6-2 Throttle lever ...6-3 Recoil starter ...6-3 Throttle override system (T.O.R.S.) ...6-3 Brake ...6-4 Brake fluid leakage ...6-5 V-belt ...6-5 Drive guard ...6-5 Drive track ...6-6 51-mm (2.0-in) high-profile pattern drive track...6-6 Slide runners ...6-6 Skis and ski runners ...6-7 Steering system...6-7 Lights ...6-7 Battery ...6-8 Air filter ...6-8 Fittings and fasteners ...6-9 Tool kit and recommended equipment...6-9 OPERATION ...7-1 Starting the engine ...7-1 Emergency engine starting...7-2 Break-in ...7-4 Riding your...
Owners Manual
Page 7
... ...8-10 Cooling system ...8-11 V-belt replacement ...8-13 Checking the oil level of the drive chain housing ...8-15 Checking the brake pads...8-17 Checking the parking brake pads...8-17 Checking the brake fluid level...8-18 Brake fluid replacement...8-18 Suspension...8-18 Drive track adjustment...8-26 Ski alignment ...8-28 Lubrication ...8-29 Headlight bulb replacement...8-30 Headlight beam adjustment...8-30 Battery ...8-31 Fuse replacement...8-32 TROUBLESHOOTING ...9-1 STORAGE ...10-1 SPECIFICATIONS ...11-1 Dimensions...11-1 Engine ...11-1 Chassis...11-2 Electric...11-3 WIRING DIAGRAM ...12...
... ...8-10 Cooling system ...8-11 V-belt replacement ...8-13 Checking the oil level of the drive chain housing ...8-15 Checking the brake pads...8-17 Checking the parking brake pads...8-17 Checking the brake fluid level...8-18 Brake fluid replacement...8-18 Suspension...8-18 Drive track adjustment...8-26 Ski alignment ...8-28 Lubrication ...8-29 Headlight bulb replacement...8-30 Headlight beam adjustment...8-30 Battery ...8-31 Fuse replacement...8-32 TROUBLESHOOTING ...9-1 STORAGE ...10-1 SPECIFICATIONS ...11-1 Dimensions...11-1 Engine ...11-1 Chassis...11-2 Electric...11-3 WIRING DIAGRAM ...12...
Owners Manual
Page 14
... influence of control. 4. Check the throttle, brake, and steering for proper operation every time before operating this snowmobile. This may result if you ignore any control or function you do not understand. 2. Severe injury or death may overheat the brake disc and reduce braking ability. 3-1 This snowmobile was not manufactured for your safety. Apply the parking brake before starting the engine. Become familiar...
... influence of control. 4. Check the throttle, brake, and steering for proper operation every time before operating this snowmobile. This may result if you ignore any control or function you do not understand. 2. Severe injury or death may overheat the brake disc and reduce braking ability. 3-1 This snowmobile was not manufactured for your safety. Apply the parking brake before starting the engine. Become familiar...
Owners Manual
Page 15
... a good quality snowmobile suit, boots, and a pair of the controls. Operation 1. Open the outside doors; Stay on your skin or clothing, immediately wash your skin with soap and water, and change your exposure to minimize your clothes. 10. Do not run the engine indoors, except when starting , inspecting, or adjusting the snowmobile. it is closed securely after...
... a good quality snowmobile suit, boots, and a pair of the controls. Operation 1. Open the outside doors; Stay on your skin or clothing, immediately wash your skin with soap and water, and change your exposure to minimize your clothes. 10. Do not run the engine indoors, except when starting , inspecting, or adjusting the snowmobile. it is closed securely after...
Owners Manual
Page 16
...engine to release the throttle and apply the brake gently-not suddenly. Use on its left side for an extended period of fuel, have an accident, or damage your snowmobile unsafe for use that may render your snowmobile. 6. Always ride with fuel in an enclosed space. 4. The best braking ... dirt or sand mixed in rapid wear of control and may leak out from the fuel breather hose. 2. Maintenance and storage 1. Never store the snowmobile with other than snow or ice. Fuel may damage the snowmobile. 4. Maintain or replace safety and instruction labels, as ice and hard-packed...
...engine to release the throttle and apply the brake gently-not suddenly. Use on its left side for an extended period of fuel, have an accident, or damage your snowmobile unsafe for use that may render your snowmobile. 6. Always ride with fuel in an enclosed space. 4. The best braking ... dirt or sand mixed in rapid wear of control and may leak out from the fuel breather hose. 2. Maintenance and storage 1. Never store the snowmobile with other than snow or ice. Fuel may damage the snowmobile. 4. Maintain or replace safety and instruction labels, as ice and hard-packed...
Owners Manual
Page 18
...[ \ ] _ a Storage compartment Tail/brake light Snow flap Side mirror (VT70) Brake lever Parking brake lever Grip warmer adjustment switch Headlight beam switch Strap (SXV70M) Engine stop switch Thumb warmer adjustment switch Throttle lever Shift lever (SXV70ER/VT70) Starter handle Shroud latch Main switch Starter lever Tachometer "D.C.S." (Detonation Control System) indicator light High beam indicator light Warning light Self-diagnosis warning indicator Coolant temperature warning indicator Fuel level warning indicator Oil level warning indicator Speedometer Grip warmer indicator Select/reset...
...[ \ ] _ a Storage compartment Tail/brake light Snow flap Side mirror (VT70) Brake lever Parking brake lever Grip warmer adjustment switch Headlight beam switch Strap (SXV70M) Engine stop switch Thumb warmer adjustment switch Throttle lever Shift lever (SXV70ER/VT70) Starter handle Shroud latch Main switch Starter lever Tachometer "D.C.S." (Detonation Control System) indicator light High beam indicator light Warning light Self-diagnosis warning indicator Coolant temperature warning indicator Fuel level warning indicator Oil level warning indicator Speedometer Grip warmer indicator Select/reset...
Owners Manual
Page 19
ESU00013 5- NOTE: @ The headlight, meter lights, and taillight will come on after the engine starts. @ È SXV70M/SXV70S É SXV70ER/VT70 5-1 CONTROL FUNCTIONS ESU00256 Main switch The main switch controls the following items. 1 "OFF" The ignition circuit is switched on . CAUTION: @ Release the switch immediately after the engine starts. @ B For SXV70ER/VT70 3 "START" The starting circuit is switched on . The starter motor starts. The key can be removed only in this position. The engine can be started. A 2 "ON" The ignition circuit is switched off.
ESU00013 5- NOTE: @ The headlight, meter lights, and taillight will come on after the engine starts. @ È SXV70M/SXV70S É SXV70ER/VT70 5-1 CONTROL FUNCTIONS ESU00256 Main switch The main switch controls the following items. 1 "OFF" The ignition circuit is switched on . CAUTION: @ Release the switch immediately after the engine starts. @ B For SXV70ER/VT70 3 "START" The starting circuit is switched on . The starter motor starts. The key can be removed only in this position. The engine can be started. A 2 "ON" The ignition circuit is switched off.
Owners Manual
Page 20
... throttle is spring-loaded, the snowmobile will decelerate, and the engine will return to idle when the lever is released. ESU00020 Starter lever (choke) Use the starter lever (choke) when starting and warming up When the engine is warm. Regulate the speed of the drive system. The T.O.R.S. WARNING @ Check the throttle, brake, and steering for proper operation. @ ESU00022 Throttle lever Once the engine is released b. NOTE: Refer the "Starting the engine...
... throttle is spring-loaded, the snowmobile will decelerate, and the engine will return to idle when the lever is released. ESU00020 Starter lever (choke) Use the starter lever (choke) when starting and warming up When the engine is warm. Regulate the speed of the drive system. The T.O.R.S. WARNING @ Check the throttle, brake, and steering for proper operation. @ ESU00022 Throttle lever Once the engine is released b. NOTE: Refer the "Starting the engine...
Owners Manual
Page 21
will not work properly. WARNING @ G G A @ If the T.O.R.S. Be sure to use the specified spark plug and spark plug cap. will operate CA-01E Mode A Idle or Switch starting Throttle switch Off Carburetor switch On B Engine È É Ê 1 2 3 4 a b Idle or starting Run Trouble Carburetor switch Throttle switch Throttle cable Throttle valve On Off Run C 5-3 Otherwise, the T.O.R.S. B Run On Off Run C Trouble Off Off T.O.R.S. is activated, make sure that the cause of the malfunction has been corrected and...
will not work properly. WARNING @ G G A @ If the T.O.R.S. Be sure to use the specified spark plug and spark plug cap. will operate CA-01E Mode A Idle or Switch starting Throttle switch Off Carburetor switch On B Engine È É Ê 1 2 3 4 a b Idle or starting Run Trouble Carburetor switch Throttle switch Throttle cable Throttle valve On Off Run C 5-3 Otherwise, the T.O.R.S. B Run On Off Run C Trouble Off Off T.O.R.S. is activated, make sure that the cause of the malfunction has been corrected and...
Owners Manual
Page 22
... between kilometers and miles, select the odometer mode "ODO", and then push the select/reset button 5 for 5 seconds, then switches to zero) G warning indicators (which show self-diagnosis, coolant temperature, fuel level, and oil level warnings) G a "D.C.S." (Detonation Control System) indicator light (which shows occurrences of abnormal combustion) G a fuel meter (which shows the fuel remaining in the fuel tank) G a grip/thumb warmer heat level indicator...
... between kilometers and miles, select the odometer mode "ODO", and then push the select/reset button 5 for 5 seconds, then switches to zero) G warning indicators (which show self-diagnosis, coolant temperature, fuel level, and oil level warnings) G a "D.C.S." (Detonation Control System) indicator light (which shows occurrences of abnormal combustion) G a fuel meter (which shows the fuel remaining in the fuel tank) G a grip/thumb warmer heat level indicator...
Owners Manual
Page 49
... drive track to learn the basic techniques well before attempting more reliable snowmobile. Also, read this Owner's Manual completely and understand the operation of an accident. @ 7-5 With the engine idling, release the parking brake. 2. Take the time to lose traction, reduce control, and increase the possibility of the controls. Improper use of its controls. @ Braking When slowing down or stopping, release the throttle and apply the brake...
... drive track to learn the basic techniques well before attempting more reliable snowmobile. Also, read this Owner's Manual completely and understand the operation of an accident. @ 7-5 With the engine idling, release the parking brake. 2. Take the time to lose traction, reduce control, and increase the possibility of the controls. Improper use of its controls. @ Braking When slowing down or stopping, release the throttle and apply the brake...
Owners Manual
Page 50
... put your weight on the running boards and leaning forward over the handlebar. (Also see "Traversing a slope.") Slow down as abrupt throttle changes, excessive braking, incorrect body movements, or too much speed for a novice snowmobiler. @ 7-6 When the snowmobile is the key to tip while turning, lean more ... by leaning forward and, on steeper inclines, standing on the throttle or steer to keep your skill. Turning Riding uphill For most snow surfaces, "body English" is pointed downhill, restart the engine, release the parking brake, and descend the hill. As you do not spin the ...
... put your weight on the running boards and leaning forward over the handlebar. (Also see "Traversing a slope.") Slow down as abrupt throttle changes, excessive braking, incorrect body movements, or too much speed for a novice snowmobiler. @ 7-6 When the snowmobile is the key to tip while turning, lean more ... by leaning forward and, on steeper inclines, standing on the throttle or steer to keep your skill. Turning Riding uphill For most snow surfaces, "body English" is pointed downhill, restart the engine, release the parking brake, and descend the hill. As you do not spin the ...
Owners Manual
Page 51
...to regain balance. A recommended riding position is important to apply just enough throttle to kneel with light pressure. It is to keep the clutch engaged while descending the hill. Also apply the brake frequently, with the knee of the uphill leg on snow. Snow and ...slip sideways on ice or icy surfaces can be prepared for turning, stopping, or starting is not recommended for you to a minimum. Traversing a slope WARNING @ WARNING @ When you to use engine compression to help slow the snowmobile, and to keep speed to properly position your body weight as needed.
...to regain balance. A recommended riding position is important to apply just enough throttle to kneel with light pressure. It is to keep the clutch engaged while descending the hill. Also apply the brake frequently, with the knee of the uphill leg on snow. Snow and ...slip sideways on ice or icy surfaces can be prepared for turning, stopping, or starting is not recommended for you to a minimum. Traversing a slope WARNING @ WARNING @ When you to use engine compression to help slow the snowmobile, and to keep speed to properly position your body weight as needed.
Owners Manual
Page 58
... starter Engine stop switch Throttle override system (T.O.R.S.) Throttle lever ∗ It is most important for best performance and safe operation. Adjust gap and clean. Replace if necessary. Check coolant level. Carburetor ∗ Y.P.V.S. ESU00139 8- G ∗ Air bleed the oil pump if necessary. Check operation. Check operation. ∗ Repair if necessary. PERIODIC MAINTENANCE ESU00140 Periodic maintenance chart Regular maintenance is recommended that these items be serviced by a Yamaha dealer...
... starter Engine stop switch Throttle override system (T.O.R.S.) Throttle lever ∗ It is most important for best performance and safe operation. Adjust gap and clean. Replace if necessary. Check coolant level. Carburetor ∗ Y.P.V.S. ESU00139 8- G ∗ Air bleed the oil pump if necessary. Check operation. Check operation. ∗ Repair if necessary. PERIODIC MAINTENANCE ESU00140 Periodic maintenance chart Regular maintenance is recommended that these items be serviced by a Yamaha dealer...
Owners Manual
Page 59
... brake installation Drive chain oil Drive chain Skis and ski runners Steering system Strap (SXV70M) 8-15-8-16 G Initial at 500 km (300 mi) and every 800 km (500 mi) thereafter. More frequently if necessary. Check for wear and damage. ∗ Adjust/replace if necessary. G G 8-16 6-7 6-7 G Lights 6-7, 8-28 6-8, 8-29 Battery (SXV70ER/VT70) G ∗ It is recommended that these items be serviced by a Yamaha...
... brake installation Drive chain oil Drive chain Skis and ski runners Steering system Strap (SXV70M) 8-15-8-16 G Initial at 500 km (300 mi) and every 800 km (500 mi) thereafter. More frequently if necessary. Check for wear and damage. ∗ Adjust/replace if necessary. G G 8-16 6-7 6-7 G Lights 6-7, 8-28 6-8, 8-29 Battery (SXV70ER/VT70) G ∗ It is recommended that these items be serviced by a Yamaha...
Owners Manual
Page 62
... reach is too long, overheating and engine damage may result. Always use a spark plug with a wire thickness gauge and adjust to the end of the threaded portion. Spark plug gap b: 0.7-0.8 mm (0.028-0.031 in several different thread lengths. Spark plug tightening torque: 20 Nm (2.0 m·kgf, 14 ft·lb) ESU00145 Engine idle speed adjustment CAUTION: @ G G G @ Be sure to the "Starting the engine" section. @ 2. If the...
... reach is too long, overheating and engine damage may result. Always use a spark plug with a wire thickness gauge and adjust to the end of the threaded portion. Spark plug gap b: 0.7-0.8 mm (0.028-0.031 in several different thread lengths. Spark plug tightening torque: 20 Nm (2.0 m·kgf, 14 ft·lb) ESU00145 Engine idle speed adjustment CAUTION: @ G G G @ Be sure to the "Starting the engine" section. @ 2. If the...
Owners Manual
Page 66
... the removal steps. is firmly seated in poor performance of the engine and requires very sophisticated adjustment. has been extensively tested and set at the Yamaha factory. Changing these settings without sufficient technical knowledge may result in the holder and throttle operates smoothly after assembling the carburetor. @ ESU00156 Yamaha Power Valve System (Y.P.V.S.) The Y.P .V.S. Remove the drain plug and install the proper main...
... the removal steps. is firmly seated in poor performance of the engine and requires very sophisticated adjustment. has been extensively tested and set at the Yamaha factory. Changing these settings without sufficient technical knowledge may result in the holder and throttle operates smoothly after assembling the carburetor. @ ESU00156 Yamaha Power Valve System (Y.P.V.S.) The Y.P .V.S. Remove the drain plug and install the proper main...
Owners Manual
Page 90
.... Seized engine ...Seizure is an important safety device; replace if necessary. G Worn or damaged piston and cylinder ...Ask a Yamaha dealer to inspect. Engine does not turn over but does not start 1. is caused by poor lubrication, inadequate fuel, or an air leak-Ask a Yamaha dealer to inspect the electrical circuits as soon as possible. 1 Relay with throttle open or wipe the spark plugs dry. 2. Engine turns over with...
.... Seized engine ...Seizure is an important safety device; replace if necessary. G Worn or damaged piston and cylinder ...Ask a Yamaha dealer to inspect. Engine does not turn over but does not start 1. is caused by poor lubrication, inadequate fuel, or an air leak-Ask a Yamaha dealer to inspect the electrical circuits as soon as possible. 1 Relay with throttle open or wipe the spark plugs dry. 2. Engine turns over with...
Owners Manual
Page 91
... secondary sheave assembly surfaces ...Clean. 2. system ...See A.2. Insufficient coolant ...Add coolant. 2. I. Problem with the correct V-belt. 2. Engine power is caught in cooling system ...Bleed air or ask a Yamaha dealer to lack of lubrication. 3. above . above . 3. "Hydrolock" occurs when fuel has filled the crankcase when the vehicle has been transported...Remove the spark plugs and turn the engine over several times with the ignition off to inspect. 9-2 2. Malfunctioning T.O.R.S. Drive track...
... secondary sheave assembly surfaces ...Clean. 2. system ...See A.2. Insufficient coolant ...Add coolant. 2. I. Problem with the correct V-belt. 2. Engine power is caught in cooling system ...Bleed air or ask a Yamaha dealer to lack of lubrication. 3. above . above . 3. "Hydrolock" occurs when fuel has filled the crankcase when the vehicle has been transported...Remove the spark plugs and turn the engine over several times with the ignition off to inspect. 9-2 2. Malfunctioning T.O.R.S. Drive track...
Owners Manual
Page 99
...(SXV70ER/VT70) Battery (SXV70ER/VT70) Starter motor (SXV70ER/VT70) Main switch Engine stop switch Throttle switch Carburetor switch Grip warmer Thumb warmer CDI unit Servo motor Throttle position sensor Grip warmer adjustment switch Thumb warmer adjustment switch Engine ground Ignition coil Spark plug Frame ground Coolant temperature sensor Passenger grip warmer switch (VT70) Resistor (VT70) Passenger grip warmer (left) (VT70) Passenger grip warmer (right) (VT70) Passenger grip warmer relay (VT70) DC back buzzer (SXV70ER/VT70) Gear position switch (SXV70ER/VT70) Knock sensor Brake light switch
...(SXV70ER/VT70) Battery (SXV70ER/VT70) Starter motor (SXV70ER/VT70) Main switch Engine stop switch Throttle switch Carburetor switch Grip warmer Thumb warmer CDI unit Servo motor Throttle position sensor Grip warmer adjustment switch Thumb warmer adjustment switch Engine ground Ignition coil Spark plug Frame ground Coolant temperature sensor Passenger grip warmer switch (VT70) Resistor (VT70) Passenger grip warmer (left) (VT70) Passenger grip warmer (right) (VT70) Passenger grip warmer relay (VT70) DC back buzzer (SXV70ER/VT70) Gear position switch (SXV70ER/VT70) Knock sensor Brake light switch