Owners Manual
Page 8
...SPECIFICATION LABELS...1-1 SAFETY INFORMATION...2-1 DESCRIPTION AND MACHINE IDENTIFICATION ...3-1 Identification number records...3-2 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 ...4-5 Fuel gauge ...4-6 Handlebar switches ...4-7 Throttle lever ...4-12 Speed limiter ...4-13 Front brake lever...4-14 Rear brake pedal and lever ...4-14 Drive select lever ...4-15 Recoil starter...4-16 Fuel tank cap ...4-17 Fuel cock...4-18 Starter (choke) " " ...4-19 Seat...
...SPECIFICATION LABELS...1-1 SAFETY INFORMATION...2-1 DESCRIPTION AND MACHINE IDENTIFICATION ...3-1 Identification number records...3-2 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 ...4-5 Fuel gauge ...4-6 Handlebar switches ...4-7 Throttle lever ...4-12 Speed limiter ...4-13 Front brake lever...4-14 Rear brake pedal and lever ...4-14 Drive select lever ...4-15 Recoil starter...4-16 Fuel tank cap ...4-17 Fuel cock...4-18 Starter (choke) " " ...4-19 Seat...
Owners Manual
Page 9
5 PRE-OPERATION CHECKS ...5-1 Front and rear brakes ...5-2 Fuel ...5-4 Engine oil ...5-6 Final gear oil...5-7 Differential gear oil ...5-7 Coolant...5-7 Throttle lever ...5-9 Fittings and Fasteners ...5-9 Lights...5-9 Switches...5-9 Tires ...5-10 How to measure tire pressure...5-12 Tire wear limit...5-13 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 ATV ...
5 PRE-OPERATION CHECKS ...5-1 Front and rear brakes ...5-2 Fuel ...5-4 Engine oil ...5-6 Final gear oil...5-7 Differential gear oil ...5-7 Coolant...5-7 Throttle lever ...5-9 Fittings and Fasteners ...5-9 Lights...5-9 Switches...5-9 Tires ...5-10 How to measure tire pressure...5-12 Tire wear limit...5-13 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 ATV ...
Owners Manual
Page 10
... Owner's manual and tool kit...8-1 Periodic maintenance/lubrication ...8-3 Panel removal and installation ...8-5 Engine oil...8-12 Final gear oil ...8-16 Differential gear oil...8-18 Cooling system...8-20 Axle boots...8-25 Spark plug inspection...8-26 Air filter element cleaning...8-29 Spark arrester cleaning ...8-32 Carburetor adjustment...8-34 Idle speed adjustment ...8-35 Valve clearance adjustment ...8-35 Throttle lever adjustment...8-36 Front brake pad inspection...8-36 Rear brake pad inspection ...8-37 Inspecting the brake fluid level...8-37 Brake fluid replacement...8-39 Front brake...
... Owner's manual and tool kit...8-1 Periodic maintenance/lubrication ...8-3 Panel removal and installation ...8-5 Engine oil...8-12 Final gear oil ...8-16 Differential gear oil...8-18 Cooling system...8-20 Axle boots...8-25 Spark plug inspection...8-26 Air filter element cleaning...8-29 Spark arrester cleaning ...8-32 Carburetor adjustment...8-34 Idle speed adjustment ...8-35 Valve clearance adjustment ...8-35 Throttle lever adjustment...8-36 Front brake pad inspection...8-36 Rear brake pad inspection ...8-37 Inspecting the brake fluid level...8-37 Brake fluid replacement...8-39 Front brake...
Owners Manual
Page 22
Radiator cap 10. Air filter case 4. Engine oil dipstick Recoil starter Coolant reservoir Drive select lever case 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. Front brake master cylinder 5. Rear brake pedal 8. Fuel tank cap 12. Battery 15...
Radiator cap 10. Air filter case 4. Engine oil dipstick Recoil starter Coolant reservoir Drive select lever case 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. Front brake master cylinder 5. Rear brake pedal 8. Fuel tank cap 12. Battery 15...
Owners Manual
Page 26
... set to the "4WD-LOCK" position. LOCK EBU00836 High-range indicator light "H" This indicator light comes on along with the differential gear lock indicator in the "H" position. EBU00802 EBU00839 Indicator and warning lights Differential gear lock indicator light "DIFF. 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. LOCK" This indicator light comes on when the drive select lever is in...
... set to the "4WD-LOCK" position. LOCK EBU00836 High-range indicator light "H" This indicator light comes on along with the differential gear lock indicator in the "H" position. EBU00802 EBU00839 Indicator and warning lights Differential gear lock indicator light "DIFF. 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. LOCK" This indicator light comes on when the drive select lever is in...
Owners Manual
Page 31
... " " position. Light switch 2. Start switch " " EBU00735 Light switch Turn the switch to the " " position to switch on the low beam and the taillight. Turn the switch to the " " position to switch on the high beam and the taillight. The engine stop switch controls ignition and can be used at all times to switch off for more than thirty minutes. EBU00606 1. If this should happen, remove the battery and recharge...
... " " position. Light switch 2. Start switch " " EBU00735 Light switch Turn the switch to the " " position to switch on the low beam and the taillight. Turn the switch to the " " position to switch on the high beam and the taillight. The engine stop switch controls ignition and can be used at all times to switch off for more than thirty minutes. EBU00606 1. If this should happen, remove the battery and recharge...
Owners Manual
Page 36
... spring-loaded, the machine will decelerate, and the engine will increase the engine speed. Before starting the engine, check the throttle to an idle any time the hand is removed from the throttle lever. If it difficult to speed up or slow down when you need to the idle position as soon as the lever is released. Make sure it returns to . Consult a Yamaha...
... spring-loaded, the machine will decelerate, and the engine will increase the engine speed. Before starting the engine, check the throttle to an idle any time the hand is removed from the throttle lever. If it difficult to speed up or slow down when you need to the idle position as soon as the lever is released. Make sure it returns to . Consult a Yamaha...
Owners Manual
Page 52
... this manual, have the machine inspected by a Yamaha dealer. 5-3 Brake operation Test the brakes at slow speed after starting out to an accident HOW TO AVOID THE HAZARD Always check the brakes at the start of the pipe joints or master cylinder. If there is leaking out of every ride. If the brakes do not provide proper braking performance, inspect the brake pads for one minute. Brake fluid...
... this manual, have the machine inspected by a Yamaha dealer. 5-3 Brake operation Test the brakes at slow speed after starting out to an accident HOW TO AVOID THE HAZARD Always check the brakes at the start of the pipe joints or master cylinder. If there is leaking out of every ride. If the brakes do not provide proper braking performance, inspect the brake pads for one minute. Brake fluid...
Owners Manual
Page 58
... Throttle lever Check to make sure they are in working condition. EBU00152 Switches Check the operation of chassis fittings and fasteners before a ride. Fittings and Fasteners Always check the tightness of the headlight switch, engine stop switch and any other switches. Take the machine to a Yamaha dealer or refer to idle position when released. It must open smoothly and spring back to the Service Manual...
... Throttle lever Check to make sure they are in working condition. EBU00152 Switches Check the operation of chassis fittings and fasteners before a ride. Fittings and Fasteners Always check the tightness of the headlight switch, engine stop switch and any other switches. Take the machine to a Yamaha dealer or refer to idle position when released. It must open smoothly and spring back to the Service Manual...
Owners Manual
Page 63
... could be unable to control the ATV, which could cause an accident or injury. Turn the fuel cock to " ". 4. Shift the drive select lever into the neutral or park position. HOW TO AVOID THE HAZARD Read the Owner's Manual carefully. HOW TO AVOID THE HAZARD When riding in cold weather. Apply the rear brake lever. 2. EBU00161 EBU00672 OPERATION WARNING Indicates a potential hazard...
... could be unable to control the ATV, which could cause an accident or injury. Turn the fuel cock to " ". 4. Shift the drive select lever into the neutral or park position. HOW TO AVOID THE HAZARD Read the Owner's Manual carefully. HOW TO AVOID THE HAZARD When riding in cold weather. Apply the rear brake lever. 2. EBU00161 EBU00672 OPERATION WARNING Indicates a potential hazard...
Owners Manual
Page 64
... to shift into neutral or park before starting the engine. 5. Completely close the throttle lever and start the engine by pushing the start position. 1 2 3 4 5 6 7 8 9 10 a. Position 2 : Cold engine startambient temperature at 0 °C (30 °F) ~ 30 °C (90 °F) and warming up position. However, it is applied. Starter (choke) 2. Fully open 1. NOTE: G When the drive select lever is in any gear if the rear brake lever...
... to shift into neutral or park before starting the engine. 5. Completely close the throttle lever and start the engine by pushing the start position. 1 2 3 4 5 6 7 8 9 10 a. Position 2 : Cold engine startambient temperature at 0 °C (30 °F) ~ 30 °C (90 °F) and warming up position. However, it is applied. Starter (choke) 2. Fully open 1. NOTE: G When the drive select lever is in any gear if the rear brake lever...
Owners Manual
Page 67
... in the engine, the light may not come on, ask a Yamaha dealer to the closed position. 2. If the light does not come on until the ATV starts moving the drive select lever along the shift guide. 1. Apply the rear brake pedal. 3. G Due to the synchronizing mechanism in reverse, the reverse indicator light should be shifted into or from reverse to park and vice...
... in the engine, the light may not come on, ask a Yamaha dealer to the closed position. 2. If the light does not come on until the ATV starts moving the drive select lever along the shift guide. 1. Apply the rear brake pedal. 3. G Due to the synchronizing mechanism in reverse, the reverse indicator light should be shifted into or from reverse to park and vice...
Owners Manual
Page 119
... idle speed/starter operation. Replace (Warm engine before draining). Replace. Check operation/fluid leakage/see NOTE page 8-4. Correct if necessary. EBU00261 PERIODIC MAINTENANCE/LUBRICATION ITEM ROUTINE Whichever comes first mile (km) hours 200 (320) 20 INITIAL 750 (1,200) 75 1,500 (2,400) 150 EVERY 1,500 3,000 (2,400) (4,800) 150 300 Valves* Cooling system Spark plug Air filter Carburetor* Crankcase breather system* Exhaust system* Sparks arrester Fuel line* Engine oil Engine oil filter cartridge Final gear oil Differential gear oil...
... idle speed/starter operation. Replace (Warm engine before draining). Replace. Check operation/fluid leakage/see NOTE page 8-4. Correct if necessary. EBU00261 PERIODIC MAINTENANCE/LUBRICATION ITEM ROUTINE Whichever comes first mile (km) hours 200 (320) 20 INITIAL 750 (1,200) 75 1,500 (2,400) 150 EVERY 1,500 3,000 (2,400) (4,800) 150 300 Valves* Cooling system Spark plug Air filter Carburetor* Crankcase breather system* Exhaust system* Sparks arrester Fuel line* Engine oil Engine oil filter cartridge Final gear oil Differential gear oil...
Owners Manual
Page 139
1. Remove the coolant reservoir cap. 7. Coolant reservoir drain hose 5. After draining the coolant, thoroughly flush the cooling system with clean tap water. 9. Tightening torque: Coolant drain bolt: 10 Nm (1.0 m·kgf, 7 ft·lb) 8-23 Radiator cap 1. Replace the coolant drain bolt washer if it is damaged, and then tighten the coolant drain bolt to the specified torque. Disconnect the hose on the coolant reservoir side, and then drain the coolant from the coolant reservoir. 8. Remove the radiator cap. 6.
1. Remove the coolant reservoir cap. 7. Coolant reservoir drain hose 5. After draining the coolant, thoroughly flush the cooling system with clean tap water. 9. Tightening torque: Coolant drain bolt: 10 Nm (1.0 m·kgf, 7 ft·lb) 8-23 Radiator cap 1. Replace the coolant drain bolt washer if it is damaged, and then tighten the coolant drain bolt to the specified torque. Disconnect the hose on the coolant reservoir side, and then drain the coolant from the coolant reservoir. 8. Remove the radiator cap. 6.
Owners Manual
Page 158
... brake light come on earlier, turn the adjusting nut in direction b. 1. G Make sure the brakes do not drag. If necessary, adjust the brake light switch as follows. To make the brake light come on just before braking takes effect. EBU00834 WARNING POTENTIAL HAZARD Operating with improperly serviced or adjusted brakes. G All air must be performed by the brake pedal and brake levers, is correct. Rear brake light switch 8-42 2. Adjusting nut Replacement...
... brake light come on earlier, turn the adjusting nut in direction b. 1. G Make sure the brakes do not drag. If necessary, adjust the brake light switch as follows. To make the brake light come on just before braking takes effect. EBU00834 WARNING POTENTIAL HAZARD Operating with improperly serviced or adjusted brakes. G All air must be performed by the brake pedal and brake levers, is correct. Rear brake light switch 8-42 2. Adjusting nut Replacement...
Owners Manual
Page 159
... HAZARD Inspect cables frequently. Replace damaged cables. Operation of control cables becomes damaged. Recommended lubricant: Yamaha chain and cable lube or SAE 10W30 motor oil 8-43 Brake lever and brake pedal lubrication Lubricate the pivoting parts. Recommended lubricant: Lithium-soap-based grease (all-purpose grease) If the cables do not operate smoothly, ask a Yamaha dealer to replace them. Lubricate the...
... HAZARD Inspect cables frequently. Replace damaged cables. Operation of control cables becomes damaged. Recommended lubricant: Yamaha chain and cable lube or SAE 10W30 motor oil 8-43 Brake lever and brake pedal lubrication Lubricate the pivoting parts. Recommended lubricant: Lithium-soap-based grease (all-purpose grease) If the cables do not operate smoothly, ask a Yamaha dealer to replace them. Lubricate the...
Owners Manual
Page 165
EBU00876 Fuse replacement 1. If the fuse immediately blows again, consult a Yamaha dealer. 1. 3. 5. 7. 9. Main fuse Headlight fuse Auxiliary DC jack fuse Signaling system fuse Spare fuse (× 3) 2. 4. 6. 8. Then turn off the main switch and install a new fuse of the specified amperage. If a fuse is blown, turn on the switches. Spare fuse Ignition fuse Four-wheel drive fuse Odometer fuse (Backup) Specified fuses: Main fuse: Headlight fuse: Ignition fuse: Auxiliary DC jack fuse: Four-wheel drive fuse: Signaling system fuse: Odometer fuse (backup): 8-49 30A 15A 10A 10A 3A 10A 10A...
EBU00876 Fuse replacement 1. If the fuse immediately blows again, consult a Yamaha dealer. 1. 3. 5. 7. 9. Main fuse Headlight fuse Auxiliary DC jack fuse Signaling system fuse Spare fuse (× 3) 2. 4. 6. 8. Then turn off the main switch and install a new fuse of the specified amperage. If a fuse is blown, turn on the switches. Spare fuse Ignition fuse Four-wheel drive fuse Odometer fuse (Backup) Specified fuses: Main fuse: Headlight fuse: Ignition fuse: Auxiliary DC jack fuse: Four-wheel drive fuse: Signaling system fuse: Odometer fuse (backup): 8-49 30A 15A 10A 10A 3A 10A 10A...
Owners Manual
Page 168
... THE HAZARD Wait for the bulb to have a Yamaha dealer make this adjustment. 1. Headlight beam adjusting screw 8-52 WHAT CAN HAPPEN You can be burned, or a fire could start if the bulb touches something flammable. Install the bulb holder cover. Headlight beam adjustment WARNING POTENTIAL HAZARD The headlight bulb is hot when it is turned off. To lower the beam, turn the adjusting screw clockwise.
... THE HAZARD Wait for the bulb to have a Yamaha dealer make this adjustment. 1. Headlight beam adjusting screw 8-52 WHAT CAN HAPPEN You can be burned, or a fire could start if the bulb touches something flammable. Install the bulb holder cover. Headlight beam adjustment WARNING POTENTIAL HAZARD The headlight bulb is hot when it is turned off. To lower the beam, turn the adjusting screw clockwise.
Owners Manual
Page 173
... appearance but will improve its general performance and extend the useful life of wheel bearings, brakes, transmission seals and electrical devices. Use only enough pressure to the wheel axles. 3. Rinse the machine off , wash all surfaces with a paint brush. Do not apply degreaser to do the job. 9-1 Make sure the spark plug and all surfaces with a garden hose. Rinse the dirt and degreaser off...
... appearance but will improve its general performance and extend the useful life of wheel bearings, brakes, transmission seals and electrical devices. Use only enough pressure to the wheel axles. 3. Rinse the machine off , wash all surfaces with a paint brush. Do not apply degreaser to do the job. 9-1 Make sure the spark plug and all surfaces with a garden hose. Rinse the dirt and degreaser off...
Owners Manual
Page 182
Model Bulb voltage, wattage × quantity: Headlight Brake/tail light Indicator light: Neutral indicator light Reverse indicator light Coolant temperature warning light Park position indicator light High gear position indicator light Low gear position indicator light Differential gear lock indicator light Specified fuses: Main fuse Headlight fuse Ignition fuse Auxiliary DC jack fuse Four-wheel drive fuse Signaling system fuse Odometer fuse (backup) YFM660FP 12 V, 30 W / 30 W × 2 12 V, 21 W / 5 W × 1 LED × 1 LED × 1 LED × 1 LED × 1 LED × 1 LED × 1 LED ...
Model Bulb voltage, wattage × quantity: Headlight Brake/tail light Indicator light: Neutral indicator light Reverse indicator light Coolant temperature warning light Park position indicator light High gear position indicator light Low gear position indicator light Differential gear lock indicator light Specified fuses: Main fuse Headlight fuse Ignition fuse Auxiliary DC jack fuse Four-wheel drive fuse Signaling system fuse Odometer fuse (backup) YFM660FP 12 V, 30 W / 30 W × 2 12 V, 21 W / 5 W × 1 LED × 1 LED × 1 LED × 1 LED × 1 LED × 1 LED × 1 LED ...