Owners Manual
Page 6
... Key identification number...3-2 Vehicle identification number ...3-3 Model label ...3-3 2 3 CONTROL FUNCTIONS...4-1 Main switch ...4-1 Indicator and warning lights ...4-2 Speedometer unit ...4-4 Handlebar switches ...4-6 Throttle lever ...4-13 Speed limiter ...4-14 Front brake lever...4-15 Brake pedal and rear brake lever ...4-15 Drive select lever ...4-16 Recoil starter...4-16 Fuel tank cap ...4-17 Fuel cock...4-18 Starter (choke) ...4-19 Seat...4-20 Storage compartment ...4-21 Front carrier ...4-21 Rear carrier ...4-21 Front and rear shock absorber adjustment ...4-22 Auxiliary DC jack...
... Key identification number...3-2 Vehicle identification number ...3-3 Model label ...3-3 2 3 CONTROL FUNCTIONS...4-1 Main switch ...4-1 Indicator and warning lights ...4-2 Speedometer unit ...4-4 Handlebar switches ...4-6 Throttle lever ...4-13 Speed limiter ...4-14 Front brake lever...4-15 Brake pedal and rear brake lever ...4-15 Drive select lever ...4-16 Recoil starter...4-16 Fuel tank cap ...4-17 Fuel cock...4-18 Starter (choke) ...4-19 Seat...4-20 Storage compartment ...4-21 Front carrier ...4-21 Rear carrier ...4-21 Front and rear shock absorber adjustment ...4-22 Auxiliary DC jack...
Owners Manual
Page 7
5 PRE-OPERATION CHECKS ...5-1 Front and rear brakes ...5-3 Fuel ...5-5 Engine oil ...5-7 Final gear oil...5-7 Differential gear oil ...5-8 Coolant...5-9 Throttle lever ...5-10 Fittings and fasteners...5-10 Lights...5-10 Switches...5-10 Tires ...5-11 How to measure tire pressure...5-13 Tire wear limit...5-14 OPERATION...6-1 Starting a cold engine ...6-1 Starting a warm engine...6-3 Warming up...6-3 Drive select lever operation and reverse driving...6-4 Engine break-in...6-7 Parking ...6-8 Parking on a slope...6-9 Accessories and loading ...6-10 7 RIDING YOUR ATV ...7-1 Getting to know your ...
5 PRE-OPERATION CHECKS ...5-1 Front and rear brakes ...5-3 Fuel ...5-5 Engine oil ...5-7 Final gear oil...5-7 Differential gear oil ...5-8 Coolant...5-9 Throttle lever ...5-10 Fittings and fasteners...5-10 Lights...5-10 Switches...5-10 Tires ...5-11 How to measure tire pressure...5-13 Tire wear limit...5-14 OPERATION...6-1 Starting a cold engine ...6-1 Starting a warm engine...6-3 Warming up...6-3 Drive select lever operation and reverse driving...6-4 Engine break-in...6-7 Parking ...6-8 Parking on a slope...6-9 Accessories and loading ...6-10 7 RIDING YOUR ATV ...7-1 Getting to know your ...
Owners Manual
Page 8
... manual and tool kit...8-1 Periodic maintenance/ lubrication ...8-3 Panel removal and installation ...8-6 Engine oil and oil filter cartridge ...8-15 Final gear oil ...8-21 Differential gear oil...8-23 Cooling system...8-25 Axle boots...8-31 Spark plug inspection...8-32 Air filter element cleaning...8-34 Spark arrester cleaning ...8-38 V-belt cooling duct check hose ...8-39 V-belt case drain plug...8-40 Carburetor adjustment...8-40 Idle speed adjustment ...8-41 Valve clearance adjustment ...8-41 Throttle lever adjustment...8-42 Select lever safety system cable adjustment...8-42 Front brake pad...
... manual and tool kit...8-1 Periodic maintenance/ lubrication ...8-3 Panel removal and installation ...8-6 Engine oil and oil filter cartridge ...8-15 Final gear oil ...8-21 Differential gear oil...8-23 Cooling system...8-25 Axle boots...8-31 Spark plug inspection...8-32 Air filter element cleaning...8-34 Spark arrester cleaning ...8-38 V-belt cooling duct check hose ...8-39 V-belt case drain plug...8-40 Carburetor adjustment...8-40 Idle speed adjustment ...8-41 Valve clearance adjustment ...8-41 Throttle lever adjustment...8-42 Select lever safety system cable adjustment...8-42 Front brake pad...
Owners Manual
Page 20
... 6. Fuel tank cap 12. Fuel cock 13. Engine oil dipstick Recoil starter Coolant reservoir Drive select lever box check hose V-belt cooling duct check hose Rear brake lever Left handlebar switches Starter (choke) Speedometer unit Main switch Right handlebar switches Throttle lever Front brake lever Auxiliary DC jack NOTE: The machine you have purchased may differ slightly from those shown in the figures of this manual. 3-1 Rear shock absorber spring preload adjusting ring 2. Rear brake fluid reservoir 7. Radiator cap 10. Battery 14. Fuses...
... 6. Fuel tank cap 12. Fuel cock 13. Engine oil dipstick Recoil starter Coolant reservoir Drive select lever box check hose V-belt cooling duct check hose Rear brake lever Left handlebar switches Starter (choke) Speedometer unit Main switch Right handlebar switches Throttle lever Front brake lever Auxiliary DC jack NOTE: The machine you have purchased may differ slightly from those shown in the figures of this manual. 3-1 Rear shock absorber spring preload adjusting ring 2. Rear brake fluid reservoir 7. Radiator cap 10. Battery 14. Fuses...
Owners Manual
Page 24
...in the "L" position. LOCK" This indicator light and the differential gear lock indicator in the "H" position. 4-2 EBU00802 EBU10601 Indicator and warning lights Differential gear lock indicator light "DIFF. NOTE: When the switch is set to "LOCK", the differential gear lock indicator light will flash until the differential gear is set to the "4WD-LOCK" position. LOCK" Low-range indicator light "L" High-range indicator light "H" Neutral indicator light "N" Reverse indicator light "R" Park indicator light "P" Four-wheel-drive indicator " "/" " Coolant temperature warning light " " DIFF.
...in the "L" position. LOCK" This indicator light and the differential gear lock indicator in the "H" position. 4-2 EBU00802 EBU10601 Indicator and warning lights Differential gear lock indicator light "DIFF. NOTE: When the switch is set to "LOCK", the differential gear lock indicator light will flash until the differential gear is set to the "4WD-LOCK" position. LOCK" Low-range indicator light "L" High-range indicator light "H" Neutral indicator light "N" Reverse indicator light "R" Park indicator light "P" Four-wheel-drive indicator " "/" " Coolant temperature warning light " " DIFF.
Owners Manual
Page 25
... riding, have a Yamaha dealer check the speed sensor circuit. _ Four-wheel-drive indicator " "/" " This indicator comes on when the "LOCK"-"4WD" switch is set to the "4WD" position. The differential gear lock indicator "DIFF.LOCK" in the "P" (park) position. 4-3 DIFF. EBU00867 Reverse indicator light "R" This indicator light comes on when the drive select lever is in the four-wheel-drive indicator also comes on when the "2WD"/ "4WD" switch is set...
... riding, have a Yamaha dealer check the speed sensor circuit. _ Four-wheel-drive indicator " "/" " This indicator comes on when the "LOCK"-"4WD" switch is set to the "4WD" position. The differential gear lock indicator "DIFF.LOCK" in the "P" (park) position. 4-3 DIFF. EBU00867 Reverse indicator light "R" This indicator light comes on when the drive select lever is in the four-wheel-drive indicator also comes on when the "2WD"/ "4WD" switch is set...
Owners Manual
Page 29
... engine stop switch controls ignition and can be used at all times to " " before starting the engine. The engine will not start or run when the engine stop switch is set to stop switch " / " Make sure that the starter motor will not operate properly. EBU12050 CAUTION: _ Do not use the headlights with the engine turned off for details.) 4-7 The battery may discharge to the point that the engine stop switch is...
... engine stop switch controls ignition and can be used at all times to " " before starting the engine. The engine will not start or run when the engine stop switch is set to stop switch " / " Make sure that the starter motor will not operate properly. EBU12050 CAUTION: _ Do not use the headlights with the engine turned off for details.) 4-7 The battery may discharge to the point that the engine stop switch is...
Owners Manual
Page 31
.... G Two-wheel drive (2WD): Power is supplied to terrain and the conditions. Select the appropriate drive according to the rear wheels only. 4-9 WARNING POTENTIAL HAZARD Riding too fast while the ATV is in 4WD-LOCK, and allow extra time and distance for the speed you are traveling. On-Command four-wheel drive switch "2WD"/"4WD" 2. You may lose control and have an accident if you go. Differential gear lock switch "LOCK"/"4WD" EBU14091...
.... G Two-wheel drive (2WD): Power is supplied to terrain and the conditions. Select the appropriate drive according to the rear wheels only. 4-9 WARNING POTENTIAL HAZARD Riding too fast while the ATV is in 4WD-LOCK, and allow extra time and distance for the speed you are traveling. On-Command four-wheel drive switch "2WD"/"4WD" 2. You may lose control and have an accident if you go. Differential gear lock switch "LOCK"/"4WD" EBU14091...
Owners Manual
Page 35
... released. Throttle lever 4-13 Correct the problem before you can't find or solve the problem yourself. 1. This could be hard to operate, making it difficult to speed up or slow down when you need to be sure it does not work smoothly, check for the cause. Consult a Yamaha dealer if you start the engine. Before starting the engine, check the throttle to . Regulate...
... released. Throttle lever 4-13 Correct the problem before you can't find or solve the problem yourself. 1. This could be hard to operate, making it difficult to speed up or slow down when you need to be sure it does not work smoothly, check for the cause. Consult a Yamaha dealer if you start the engine. Before starting the engine, check the throttle to . Regulate...
Owners Manual
Page 51
WARNING POTENTIAL HAZARD Riding with the brakes. If a problem cannot be corrected by the adjustment procedures provided in this manual, have a Yamaha dealer check for the cause. 5-4 WHAT CAN HAPPEN You could lose braking ability, which could lead to an accident. HOW TO AVOID THE HAZARD Always check the brakes at the start of every ride. Do not ride the ATV if you find any problem with improperly operating brakes.
WARNING POTENTIAL HAZARD Riding with the brakes. If a problem cannot be corrected by the adjustment procedures provided in this manual, have a Yamaha dealer check for the cause. 5-4 WHAT CAN HAPPEN You could lose braking ability, which could lead to an accident. HOW TO AVOID THE HAZARD Always check the brakes at the start of every ride. Do not ride the ATV if you find any problem with improperly operating brakes.
Owners Manual
Page 62
... control cables work smoothly before you do not understand, ask your Yamaha dealer. 6-1 WHAT CAN HAPPEN You could be unable to an accident or collision. Shift the drive select lever into the neutral or park position. If there is a control or function you begin riding. 1. Apply the rear brake lever or brake pedal. 2. Turn the main switch to "ON" and the engine stop switch...
... control cables work smoothly before you do not understand, ask your Yamaha dealer. 6-1 WHAT CAN HAPPEN You could be unable to an accident or collision. Shift the drive select lever into the neutral or park position. If there is a control or function you begin riding. 1. Apply the rear brake lever or brake pedal. 2. Turn the main switch to "ON" and the engine stop switch...
Owners Manual
Page 63
... electric circuit. Fully open 1. NOTE: G When the drive select lever is recommended to shift into neutral or park before starting the engine. _ _ Position 3 : Cold engine startambient temperature above 25 °C (80 °F) and warm engine start switch. 6-2 a. G The engine can be started in reference to the figure: Position 1 : Cold engine startambient temperature below 5 °C (40 °F). Use the starter (choke) in any gear if the rear brake lever or brake...
... electric circuit. Fully open 1. NOTE: G When the drive select lever is recommended to shift into neutral or park before starting the engine. _ _ Position 3 : Cold engine startambient temperature above 25 °C (80 °F) and warm engine start switch. 6-2 a. G The engine can be started in reference to the figure: Position 1 : Cold engine startambient temperature below 5 °C (40 °F). Use the starter (choke) in any gear if the rear brake lever or brake...
Owners Manual
Page 66
... reverse or park without applying the rear brake. _ _ 1. If the light does not come on , ask a Yamaha dealer to park and vice versa by moving . _ _ 4. Check behind for people or obstacles, and then release the brake pedal. 6-5 Drive select lever NOTE: G When in the engine, the light may not come on until the ATV starts moving the drive select lever along the shift guide. 1. G Due...
... reverse or park without applying the rear brake. _ _ 1. If the light does not come on , ask a Yamaha dealer to park and vice versa by moving . _ _ 4. Check behind for people or obstacles, and then release the brake pedal. 6-5 Drive select lever NOTE: G When in the engine, the light may not come on until the ATV starts moving the drive select lever along the shift guide. 1. G Due...
Owners Manual
Page 94
... that the engine and exhaust pipe will start the engine. With the engine idling, shift the drive select lever to start to the engine or drive train may lift off the ground resulting in this area is applied too abruptly, the front wheels may occur. _ 7-21 Avoid higher speeds until you are thoroughly familiar with these components. When slowing down or stopping, release the throttle and apply...
... that the engine and exhaust pipe will start the engine. With the engine idling, shift the drive select lever to start to the engine or drive train may lift off the ground resulting in this area is applied too abruptly, the front wheels may occur. _ 7-21 Avoid higher speeds until you are thoroughly familiar with these components. When slowing down or stopping, release the throttle and apply...
Owners Manual
Page 143
... cap and panel D. 13. Pour the recommended coolant into the radiator until it to the specified torque. Replace the coolant drain bolt washer if it is damaged, install the coolant drain bolt, and then tighten it is full, and then install the radiator cap. After draining the coolant, thoroughly flush the cooling system with clean tap water. 10. Coolant reservoir drain hose 9. 11. Install the coolant reservoir hose...
... cap and panel D. 13. Pour the recommended coolant into the radiator until it to the specified torque. Replace the coolant drain bolt washer if it is damaged, install the coolant drain bolt, and then tighten it is full, and then install the radiator cap. After draining the coolant, thoroughly flush the cooling system with clean tap water. 10. Coolant reservoir drain hose 9. 11. Install the coolant reservoir hose...
Owners Manual
Page 164
... rear brake light switch in direction b. 1. To make the brake light come on just before braking takes effect. If necessary, adjust the brake light switch as follows. 1. Adjusting nut 3. Remove panel B. (See page 8-9 for panel removal and installation procedures.) 2. To make the brake light come on earlier, turn the adjusting nut in place. Install the panel. 8-50 EBU12590 Adjusting the rear brake light switch The rear brake light switch, which is activated by the brake...
... rear brake light switch in direction b. 1. To make the brake light come on just before braking takes effect. If necessary, adjust the brake light switch as follows. 1. Adjusting nut 3. Remove panel B. (See page 8-9 for panel removal and installation procedures.) 2. To make the brake light come on earlier, turn the adjusting nut in place. Install the panel. 8-50 EBU12590 Adjusting the rear brake light switch The rear brake light switch, which is activated by the brake...
Owners Manual
Page 165
EBU00356 EBU00717 Cable inspection and lubrication WARNING POTENTIAL HAZARD Damaged control cables. Operation of control cables becomes damaged. Recommended lubricant: Yamaha chain and cable lube or SAE 10W30 motor oil 8-51 Brake lever and brake pedal lubrication Lubricate the pivoting parts. Lubricate the inner cables and the cable ends. Cables can result when the outer covering of controls could be restricted, which...
EBU00356 EBU00717 Cable inspection and lubrication WARNING POTENTIAL HAZARD Damaged control cables. Operation of control cables becomes damaged. Recommended lubricant: Yamaha chain and cable lube or SAE 10W30 motor oil 8-51 Brake lever and brake pedal lubrication Lubricate the pivoting parts. Lubricate the inner cables and the cable ends. Cables can result when the outer covering of controls could be restricted, which...
Owners Manual
Page 171
...) Spare fuse (× 3) CAUTION: _ Specified fuses: Main fuse: Headlight fuse: Ignition fuse: Auxiliary DC jack fuse: Four-wheel drive fuse: Signaling system fuse: Backup fuse: 30 A 15 A 10 A 10 A 3A 10 A 10 A 8-57 To prevent accidental short-circuiting, turn off the main switch when checking or replacing a fuse. _ Main fuse 2. Ignition fuse Auxiliary DC jack fuse 6. Spare main fuse Headlight fuse 4. WHAT CAN HAPPEN An improper fuse can cause damage to the electrical system which could lead to a fire. WARNING POTENTIAL...
...) Spare fuse (× 3) CAUTION: _ Specified fuses: Main fuse: Headlight fuse: Ignition fuse: Auxiliary DC jack fuse: Four-wheel drive fuse: Signaling system fuse: Backup fuse: 30 A 15 A 10 A 10 A 3A 10 A 10 A 8-57 To prevent accidental short-circuiting, turn off the main switch when checking or replacing a fuse. _ Main fuse 2. Ignition fuse Auxiliary DC jack fuse 6. Spare main fuse Headlight fuse 4. WHAT CAN HAPPEN An improper fuse can cause damage to the electrical system which could lead to a fire. WARNING POTENTIAL...
Owners Manual
Page 179
... general performance and extend the useful life of the exhaust pipe to -get-at places. 5. Make sure the spark plug and all surfaces with a garden hose. Do not apply degreaser to do the job. 9-1 Block off the end of many components. 1. If the engine case is handy for hard-to prevent water entry. Use only enough pressure to the wheel axles. 3. Before...
... general performance and extend the useful life of the exhaust pipe to -get-at places. 5. Make sure the spark plug and all surfaces with a garden hose. Do not apply degreaser to do the job. 9-1 Block off the end of many components. 1. If the engine case is handy for hard-to prevent water entry. Use only enough pressure to the wheel axles. 3. Before...
Owners Manual
Page 188
Model Bulb voltage, wattage × quantity: Headlight Tail/brake light Indicator light: Neutral indicator light Reverse indicator light Coolant temperature warning light Park indicator light High-range indicator light Low-range indicator light Differential gear lock indicator light Fuses: Main fuse Headlight fuse Ignition fuse Auxiliary DC jack fuse Four-wheel-drive fuse Signaling system fuse Backup fuse YFM660FA 12 V, 30 W / 30 W × 2 12 V, 5 W / 21 W × 1 LED LED LED LED LED LED LED 30A 15A 10A 10A 3A 10A 10A 10-6
Model Bulb voltage, wattage × quantity: Headlight Tail/brake light Indicator light: Neutral indicator light Reverse indicator light Coolant temperature warning light Park indicator light High-range indicator light Low-range indicator light Differential gear lock indicator light Fuses: Main fuse Headlight fuse Ignition fuse Auxiliary DC jack fuse Four-wheel-drive fuse Signaling system fuse Backup fuse YFM660FA 12 V, 30 W / 30 W × 2 12 V, 5 W / 21 W × 1 LED LED LED LED LED LED LED 30A 15A 10A 10A 3A 10A 10A 10-6