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
... Final gear oil ...8-21 Differential gear oil...8-23 Cooling system...8-25 Changing the coolant ...8-27 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 Select lever safety system cable adjustment ...8-42 Throttle lever adjustment ...8-42 Front brake pad check ...8-43 Checking the rear brake pads ...8-43 Checking the brake fluid level...8-44 Brake fluid replacement...
... Final gear oil ...8-21 Differential gear oil...8-23 Cooling system...8-25 Changing the coolant ...8-27 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 Select lever safety system cable adjustment ...8-42 Throttle lever adjustment ...8-42 Front brake pad check ...8-43 Checking the rear brake pads ...8-43 Checking the brake fluid level...8-44 Brake fluid replacement...
Owners Manual
Page 9
Storage ...9-3 SPECIFICATIONS...10-1 NOISE REGULATION...11-1 MAINTENANCE RECORD ...12-1 ATV LIMITED WARRANTY ...13-1 YAMAHA EXTENDED SERVICE (Y.E.S.) ...14-1 10 11 12 13 14 Cleaning...9-1 B. Headlight beam adjustment ...8-60 Tail/brake light bulb replacement ...8-61 Troubleshooting ...8-62 Troubleshooting charts ...8-63 9 CLEANING AND STORAGE...9-1 A.
Storage ...9-3 SPECIFICATIONS...10-1 NOISE REGULATION...11-1 MAINTENANCE RECORD ...12-1 ATV LIMITED WARRANTY ...13-1 YAMAHA EXTENDED SERVICE (Y.E.S.) ...14-1 10 11 12 13 14 Cleaning...9-1 B. Headlight beam adjustment ...8-60 Tail/brake light bulb replacement ...8-61 Troubleshooting ...8-62 Troubleshooting charts ...8-63 9 CLEANING AND STORAGE...9-1 A.
Owners Manual
Page 20
.... Fuses 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. Front brake fluid reservoir 6. V-belt case drain plug 10. Fuel tank cap 13. Air filter...
.... Fuses 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. Front brake fluid reservoir 6. V-belt case drain plug 10. Fuel tank cap 13. Air filter...
Owners Manual
Page 24
...-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. Differential gear lock indicator light "DIFF. EBU01064 High-range indicator light "H" This indicator light comes on when the drive select lever is set to the "4WD-LOCK" position. LOCK EBU01122 Low-range indicator light "L" This indicator light comes on when the differential gear lock switch is in the "L" position. LOCK" This indicator light and the differential gear lock indicator in...
...-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. Differential gear lock indicator light "DIFF. EBU01064 High-range indicator light "H" This indicator light comes on when the drive select lever is set to the "4WD-LOCK" position. LOCK EBU01122 Low-range indicator light "L" This indicator light comes on when the differential gear lock switch is in the "L" position. LOCK" This indicator light and the differential gear lock indicator in...
Owners Manual
Page 25
... the speed sensor circuit. _ Four-wheel-drive indicator " "/" " This indicator comes on when the "2WD"/ "4WD" switch is in the "R" reverse position. LOCK NOTE: Due to the "4WD" position. EBU00972 EBU11312 Neutral indicator light "N" This indicator light comes on when the drive select lever is in the "P" (park) position. 4-3 The differential gear lock indicator "DIFF.LOCK" in the four-wheel-drive indicator also comes on when the "LOCK"-"4WD" switch is...
... the speed sensor circuit. _ Four-wheel-drive indicator " "/" " This indicator comes on when the "2WD"/ "4WD" switch is in the "R" reverse position. LOCK NOTE: Due to the "4WD" position. EBU00972 EBU11312 Neutral indicator light "N" This indicator light comes on when the drive select lever is in the "P" (park) position. 4-3 The differential gear lock indicator "DIFF.LOCK" in the four-wheel-drive indicator also comes on when the "LOCK"-"4WD" switch is...
Owners Manual
Page 29
... it. _ Engine stop switch " / " Make sure that the starter motor will not start or run when the engine stop switch is set to stop the engine, especially in an emergency. The engine will not operate properly. The battery may discharge to " ". If this switch is set to the point that the engine stop switch controls ignition and can be used at all times to " " before starting the engine. (See...
... it. _ Engine stop switch " / " Make sure that the starter motor will not start or run when the engine stop switch is set to stop the engine, especially in an emergency. The engine will not operate properly. The battery may discharge to " ". If this switch is set to the point that the engine stop switch controls ignition and can be used at all times to " " before starting the engine. (See...
Owners Manual
Page 35
... to speed up or slow down when you need to the idle position as soon as the lever is operating smoothly. If it returns to . Because the throttle is spring-loaded, the machine will decelerate, and the engine will return to operate, making it is released. Consult a Yamaha dealer if you start the engine. Make sure it does not work...
... to speed up or slow down when you need to the idle position as soon as the lever is operating smoothly. If it returns to . Because the throttle is spring-loaded, the machine will decelerate, and the engine will return to operate, making it is released. Consult a Yamaha dealer if you start the engine. Make sure it does not work...
Owners Manual
Page 51
WHAT CAN HAPPEN You could lose braking ability, which could lead to an accident. If a problem cannot be corrected by the adjustment procedures provided in this manual, have a Yamaha dealer check for the cause. 5-4 WARNING POTENTIAL HAZARD Riding with the brakes. 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.
WHAT CAN HAPPEN You could lose braking ability, which could lead to an accident. If a problem cannot be corrected by the adjustment procedures provided in this manual, have a Yamaha dealer check for the cause. 5-4 WARNING POTENTIAL HAZARD Riding with the brakes. 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
... collision. Starting a cold engine WARNING POTENTIAL HAZARD Freezing control cables in cold weather, always make sure all controls. Turn the fuel cock to " ". 4. WHAT CAN HAPPEN Loss of control, which could result in serious injury or death. Shift the drive select lever into the neutral or park position. Apply the rear brake lever. 2. WARNING POTENTIAL HAZARD Operating ATV without being familiar with all control cables work smoothly before...
... collision. Starting a cold engine WARNING POTENTIAL HAZARD Freezing control cables in cold weather, always make sure all controls. Turn the fuel cock to " ". 4. WHAT CAN HAPPEN Loss of control, which could result in serious injury or death. Shift the drive select lever into the neutral or park position. Apply the rear brake lever. 2. WARNING POTENTIAL HAZARD Operating ATV without being familiar with all control cables work smoothly before...
Owners Manual
Page 63
... any gear if the rear brake lever is in reference 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 Half open 3. Completely close the throttle lever and start the engine by pushing the start position. 1 2 3 4 5 6 7 8 9 10 5. However, it is recommended to the figure: Position 1 : Cold engine startambient temperature below 5 °C (40 °F). Starter...
... any gear if the rear brake lever is in reference 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 Half open 3. Completely close the throttle lever and start the engine by pushing the start position. 1 2 3 4 5 6 7 8 9 10 5. However, it is recommended to the figure: Position 1 : Cold engine startambient temperature below 5 °C (40 °F). Starter...
Owners Manual
Page 66
... reverse or from reverse or park without applying the rear brake. _ _ 1. If the light does not come on until the ATV starts moving the drive select lever along the shift guide. 1. Bring the ATV to a complete stop and return the throttle lever to inspect the electrical circuit. Shifting: Neutral to Reverse and Reverse to Park NOTE: The drive select lever cannot be on...
... reverse or from reverse or park without applying the rear brake. _ _ 1. If the light does not come on until the ATV starts moving the drive select lever along the shift guide. 1. Bring the ATV to a complete stop and return the throttle lever to inspect the electrical circuit. Shifting: Neutral to Reverse and Reverse to Park NOTE: The drive select lever cannot be on...
Owners Manual
Page 94
... the throttle, brakes, shifting procedures, and turning techniques in contact with the operation of directional control. The centrifugal clutch will engage and you are more difficult terrain. You should practice control of obstacles and other riders. With the engine idling, shift the drive select lever to a complete stop. Make sure that the engine and exhaust pipe will start the engine. Improper use only, and handling maneuvers...
... the throttle, brakes, shifting procedures, and turning techniques in contact with the operation of directional control. The centrifugal clutch will engage and you are more difficult terrain. You should practice control of obstacles and other riders. With the engine idling, shift the drive select lever to a complete stop. Make sure that the engine and exhaust pipe will start the engine. Improper use only, and handling maneuvers...
Owners Manual
Page 143
... engines. Antifreeze and water mixing ratio: 1:1 Total amount: 1.8 L (1.58 Imp qt, 1.90 US qt) Coolant reservoir capacity (up to the specified torque. After draining the coolant, thoroughly flush the cooling system with clean tap water. 10. Coolant reservoir drain hose 9. Pour the recommended coolant into the reservoir to the maximum level mark, and then install the reservoir cap and panel D. 13. Replace the coolant...
... engines. Antifreeze and water mixing ratio: 1:1 Total amount: 1.8 L (1.58 Imp qt, 1.90 US qt) Coolant reservoir capacity (up to the specified torque. After draining the coolant, thoroughly flush the cooling system with clean tap water. 10. Coolant reservoir drain hose 9. Pour the recommended coolant into the reservoir to the maximum level mark, and then install the reservoir cap and panel D. 13. Replace the coolant...
Owners Manual
Page 164
... rear brake light switch The rear brake light switch, which is activated by the brake pedal and rear brake lever, is properly adjusted when the brake light comes on earlier, turn the adjusting nut in place. If necessary, adjust the brake light switch as follows. 1. Adjusting nut 3. Turn the adjusting nut while holding the rear brake light switch in direction b. 1. To make the brake light come on later, turn the adjusting nut in direction a. Rear brake light switch 2. Remove panel...
... rear brake light switch The rear brake light switch, which is activated by the brake pedal and rear brake lever, is properly adjusted when the brake light comes on earlier, turn the adjusting nut in place. If necessary, adjust the brake light switch as follows. 1. Adjusting nut 3. Turn the adjusting nut while holding the rear brake light switch in direction b. 1. To make the brake light come on later, turn the adjusting nut in direction a. Rear brake light switch 2. Remove panel...
Owners Manual
Page 165
Recommended lubricant: Yamaha chain and cable lube or SAE 10W30 motor oil 8-51 Lubricating the brake levers and brake pedal Lubricate the pivoting parts. EBU00356 EBU12600 Cable inspection and lubrication WARNING POTENTIAL HAZARD Damaged control cables. If the cables do not operate smoothly, ask a Yamaha dealer to replace them. Cables can result when the outer covering of controls could be restricted, which could...
Recommended lubricant: Yamaha chain and cable lube or SAE 10W30 motor oil 8-51 Lubricating the brake levers and brake pedal Lubricate the pivoting parts. EBU00356 EBU12600 Cable inspection and lubrication WARNING POTENTIAL HAZARD Damaged control cables. If the cables do not operate smoothly, ask a Yamaha dealer to replace them. Cables can result when the outer covering of controls could be restricted, which could...
Owners Manual
Page 171
... to the electrical system which could lead to a fire. Four-wheel drive fuse Signaling system fuse Backup fuse (for odometer and clock) 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. _ WARNING POTENTIAL HAZARD Using an improper fuse. Spare main fuse Headlight fuse 4.
... to the electrical system which could lead to a fire. Four-wheel drive fuse Signaling system fuse Backup fuse (for odometer and clock) 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. _ WARNING POTENTIAL HAZARD Using an improper fuse. Spare main fuse Headlight fuse 4.
Owners Manual
Page 179
... its appearance but will improve its general performance and extend the useful life of wheel bearings, brakes, transmission seals and electrical devices. Make sure the spark plug and all surfaces with a paint brush. Do not apply degreaser to do the job. 9-1 Use only enough pressure to the wheel axles. 3. A plastic bag and strong rubber band may cause water seepage and deterioration of many components...
... its appearance but will improve its general performance and extend the useful life of wheel bearings, brakes, transmission seals and electrical devices. Make sure the spark plug and all surfaces with a paint brush. Do not apply degreaser to do the job. 9-1 Use only enough pressure to the wheel axles. 3. A plastic bag and strong rubber band may cause water seepage and deterioration of many components...
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 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 YFM66FA 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 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 YFM66FA 10-6