Owners Manual
Page 6
...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 ...4-4 Fuel gauge ...4-4 Handlebar switches ...4-5 Throttle lever ...4-7 Speed limiter ...4-8 Front brake lever...4-9 Brake pedal and rear brake lever ...4-9 Parking brake...4-10 Shift pedal ...4-11 Reverse knob ...4-11 Recoil starter...4-12 Fuel tank cap ...4-13 Fuel cock...4-13 Starter (choke) ...4-14 Seat...4-15 Storage box...4-16 Front carrier...
...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 ...4-4 Fuel gauge ...4-4 Handlebar switches ...4-5 Throttle lever ...4-7 Speed limiter ...4-8 Front brake lever...4-9 Brake pedal and rear brake lever ...4-9 Parking brake...4-10 Shift pedal ...4-11 Reverse knob ...4-11 Recoil starter...4-12 Fuel tank cap ...4-13 Fuel cock...4-13 Starter (choke) ...4-14 Seat...4-15 Storage box...4-16 Front carrier...
Owners Manual
Page 7
... DC jack...4-19 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 Throttle lever ...5-8 Fittings and fasteners...5-8 Lights...5-8 Switches...5-8 Tires ...5-9 How to measure tire pressure...5-11 Tire wear limit...5-12 6 OPERATION ...6-1 Starting a cold engine...6-1 Starting a warm engine ...6-3 Warming up ...6-3 Reverse knob operation and reverse driving ...6-4 Shifting...6-5 To start out and accelerate...6-5 To decelerate...6-6 Engine break-in ...6-7 Parking...6-8 Parking on a slope...6-9 Accessories and...
... DC jack...4-19 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 Throttle lever ...5-8 Fittings and fasteners...5-8 Lights...5-8 Switches...5-8 Tires ...5-9 How to measure tire pressure...5-11 Tire wear limit...5-12 6 OPERATION ...6-1 Starting a cold engine...6-1 Starting a warm engine ...6-3 Warming up ...6-3 Reverse knob operation and reverse driving ...6-4 Shifting...6-5 To start out and accelerate...6-5 To decelerate...6-6 Engine break-in ...6-7 Parking...6-8 Parking on a slope...6-9 Accessories and...
Owners Manual
Page 8
... oil ...8-11 Differential gear oil...8-14 Axle boots...8-16 Spark plug inspection...8-17 Air filter element cleaning...8-18 Spark arrester cleaning ...8-21 Carburetor adjustment...8-22 Idle speed adjustment ...8-23 Valve clearance adjustment ...8-24 Reverse lock release cable adjustment...8-24 Throttle lever adjustment ...8-24 Front brake pad check ...8-25 Rear brake shoe inspection...8-25 Brake fluid level check ...8-26 Brake fluid replacement ...8-27 Front brake lever free play...8-28 Brake pedal and rear brake lever adjustment ...8-29 Adjusting the rear brake light switch ...8-32 Clutch...
... oil ...8-11 Differential gear oil...8-14 Axle boots...8-16 Spark plug inspection...8-17 Air filter element cleaning...8-18 Spark arrester cleaning ...8-21 Carburetor adjustment...8-22 Idle speed adjustment ...8-23 Valve clearance adjustment ...8-24 Reverse lock release cable adjustment...8-24 Throttle lever adjustment ...8-24 Front brake pad check ...8-25 Rear brake shoe inspection...8-25 Brake fluid level check ...8-26 Brake fluid replacement ...8-27 Front brake lever free play...8-28 Brake pedal and rear brake lever adjustment ...8-29 Adjusting the rear brake light switch ...8-32 Clutch...
Owners Manual
Page 21
Headlights 8. Rear brake lever 15. Fuel gauge 23. EBU00032 DESCRIPTION AND MACHINE IDENTIFICATION 1 2 3 4 5 6 7 1. Front carrier 6. Rear wheel 12. Parking brake lock plate 16. Speedometer 18. Rear carrier 3. Seat 4. Starter (choke) 17. Throttle lever 22. Brake pedal 7. Fuel cock 9. Tail/brake light 11. Shift pedal 13. Front brake lever 21. Auxiliary DC jack 5. On command four-wheel drive switch 20. Left handlebar switches 8 9 10 11 12 13 14 NOTE: The machine you have purchased may differ slightly from...
Headlights 8. Rear brake lever 15. Fuel gauge 23. EBU00032 DESCRIPTION AND MACHINE IDENTIFICATION 1 2 3 4 5 6 7 1. Front carrier 6. Rear wheel 12. Parking brake lock plate 16. Speedometer 18. Rear carrier 3. Seat 4. Starter (choke) 17. Throttle lever 22. Brake pedal 7. Fuel cock 9. Tail/brake light 11. Shift pedal 13. Front brake lever 21. Auxiliary DC jack 5. On command four-wheel drive switch 20. Left handlebar switches 8 9 10 11 12 13 14 NOTE: The machine you have purchased may differ slightly from...
Owners Manual
Page 25
..., reduce the load to the synchronizing mechanism in the differential gear case, the light may overheat if the ATV is in neutral. 4-2 EBU00045 EBU00605 Four-wheel-drive indicator light " " This indicator light comes on when the 2WD/ 4WD switch is in reverse. Reverse indicator light "REVERSE" Neutral indicator light "NEUTRAL" Oil temperature warning light " " Four-wheel-drive indicator light " " _ G The engine may not come on until the ATV...
..., reduce the load to the synchronizing mechanism in the differential gear case, the light may overheat if the ATV is in neutral. 4-2 EBU00045 EBU00605 Four-wheel-drive indicator light " " This indicator light comes on when the 2WD/ 4WD switch is in reverse. Reverse indicator light "REVERSE" Neutral indicator light "NEUTRAL" Oil temperature warning light " " Four-wheel-drive indicator light " " _ G The engine may not come on until the ATV...
Owners Manual
Page 28
... Handlebar switches Start switch " " The starter motor cranks the engine when this should happen, remove the battery and recharge it. _ If this switch is set to turn on the low beams, the taillight and the meter lighting. Set the switch to " " to " ". 4-5 CAUTION: _ Do not use the headlights with the engine turned off all times to the point that the engine stop switch is set to turn off...
... Handlebar switches Start switch " " The starter motor cranks the engine when this should happen, remove the battery and recharge it. _ If this switch is set to turn on the low beams, the taillight and the meter lighting. Set the switch to " " to " ". 4-5 CAUTION: _ Do not use the headlights with the engine turned off all times to the point that the engine stop switch is set to turn off...
Owners Manual
Page 30
... engine speed. Throttle lever 4-7 Regulate the speed of throttle. This could be sure it returns to . If it difficult to an idle any time the hand is released. Consult a Yamaha dealer if you need to the idle position as soon as the lever is removed from the throttle lever. Make sure it is running, movement of the throttle lever before riding the ATV. Before starting...
... engine speed. Throttle lever 4-7 Regulate the speed of throttle. This could be sure it returns to . If it difficult to an idle any time the hand is released. Consult a Yamaha dealer if you need to the idle position as soon as the lever is removed from the throttle lever. Make sure it is running, movement of the throttle lever before riding the ATV. Before starting...
Owners Manual
Page 47
WHAT CAN HAPPEN You could lose braking ability, which could lead to an accident. WARNING POTENTIAL HAZARD Riding with the brakes. Do not ride the ATV if you find any problem with improperly operating 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 HOW TO AVOID THE HAZARD Always check the brakes at the start of every ride.
WHAT CAN HAPPEN You could lose braking ability, which could lead to an accident. WARNING POTENTIAL HAZARD Riding with the brakes. Do not ride the ATV if you find any problem with improperly operating 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 HOW TO AVOID THE HAZARD Always check the brakes at the start of every ride.
Owners Manual
Page 56
... all control cables work smoothly before you do not understand, ask your Yamaha dealer. 6-1 WHAT CAN HAPPEN Loss of control, which could lead to an accident or collision. If there is a control or function you begin riding. 1. Turn the fuel cock to " ". 4. Shift the transmission into neutral. HOW TO AVOID THE HAZARD When riding in cold weather. Set the parking brake. 2. Starting a cold engine WARNING POTENTIAL...
... all control cables work smoothly before you do not understand, ask your Yamaha dealer. 6-1 WHAT CAN HAPPEN Loss of control, which could lead to an accident or collision. If there is a control or function you begin riding. 1. Turn the fuel cock to " ". 4. Shift the transmission into neutral. HOW TO AVOID THE HAZARD When riding in cold weather. Set the parking brake. 2. Starting a cold engine WARNING POTENTIAL...
Owners Manual
Page 57
G The engine can be started in any gear if the rear brake lever is recommended to shift into neutral before starting the engine. _ _ Position 3: Cold engine start- However, it . ambient temperature above 25 °C (80 °F) and warm engine start - ambient temperature below 5 °C (40 °F). ambient temperature at 0 °C (30 °F)-30 °C (90 °F) and warming up position. Starter (choke) 2. Fully-open 1. If...
G The engine can be started in any gear if the rear brake lever is recommended to shift into neutral before starting the engine. _ _ Position 3: Cold engine start- However, it . ambient temperature above 25 °C (80 °F) and warm engine start - ambient temperature below 5 °C (40 °F). ambient temperature at 0 °C (30 °F)-30 °C (90 °F) and warming up position. Starter (choke) 2. Fully-open 1. If...
Owners Manual
Page 59
...shift pedal. While applying the rear brake lever or brake pedal, turn the reverse knob clockwise with the transmission in reverse. When it is safe to the rear while backing. 1. If the light does not come on . Otherwise the transmission may be on , ask a Yamaha dealer to inspect the ATV. _ _ Before shifting, stop and return the throttle... then release the brake. 5. WARNING POTENTIAL HAZARD Improperly operating in neutral. 2. Shift the transmission into reverse, make sure there are no obstacles or people behind you, resulting in reverse, the reverse indicator light should ...
...shift pedal. While applying the rear brake lever or brake pedal, turn the reverse knob clockwise with the transmission in reverse. When it is safe to the rear while backing. 1. If the light does not come on . Otherwise the transmission may be on , ask a Yamaha dealer to inspect the ATV. _ _ Before shifting, stop and return the throttle... then release the brake. 5. WARNING POTENTIAL HAZARD Improperly operating in neutral. 2. Shift the transmission into reverse, make sure there are no obstacles or people behind you, resulting in reverse, the reverse indicator light should ...
Owners Manual
Page 60
..., damage to the engine and drive train may cause damage. _ EBU00205 To start out and accelerate: 1. To shift into neutral, return the throttle lever to control the amount of power you have available at a given speed or for long periods with centrifugal automatic clutch. Even in the neutral position, the transmission is only properly lubricated when the engine is running. Reverse position 6-5 The...
..., damage to the engine and drive train may cause damage. _ EBU00205 To start out and accelerate: 1. To shift into neutral, return the throttle lever to control the amount of power you have available at a given speed or for long periods with centrifugal automatic clutch. Even in the neutral position, the transmission is only properly lubricated when the engine is running. Reverse position 6-5 The...
Owners Manual
Page 63
Turn the fuel cock to "OFF" and apply the parking brake. 1. Locked position 6-8 EBU00211 10-20 hours: Avoid prolonged operation above 3/4 throttle. After break-in: Avoid prolonged full throttle operation. Parking When parking, stop the engine and shift into neutral. Vary speeds occasionally. Rev the machine freely through the gears but do not use full throttle at any time.
Turn the fuel cock to "OFF" and apply the parking brake. 1. Locked position 6-8 EBU00211 10-20 hours: Avoid prolonged operation above 3/4 throttle. After break-in: Avoid prolonged full throttle operation. Parking When parking, stop the engine and shift into neutral. Vary speeds occasionally. Rev the machine freely through the gears but do not use full throttle at any time.
Owners Manual
Page 89
... perform on the ATV, be hot when riding and afterwards; With the engine idling, lift the shift pedal to the 2nd gear position. Be sure to coordinate the use only, and handling maneuvers are more difficult terrain. do not allow skin or clothing to become familiar with your ATV. Once the ATV has attained adequate speed, release the throttle and lift...
... perform on the ATV, be hot when riding and afterwards; With the engine idling, lift the shift pedal to the 2nd gear position. Be sure to coordinate the use only, and handling maneuvers are more difficult terrain. do not allow skin or clothing to become familiar with your ATV. Once the ATV has attained adequate speed, release the throttle and lift...
Owners Manual
Page 141
... brake light switch as follows. Rear brake light switch 2. Turn the adjusting nut while holding the rear brake light switch in direction a. To make the brake light come on earlier, turn the adjusting nut in direction b. 1. Rear brake light switch adjusting nut 8-32 To make the brake light come on just before braking takes effect. EBU00834 Adjusting the rear brake light switch The rear brake light switch, which is activated by the brake pedal and brake levers, is properly adjusted when the brake light...
... brake light switch as follows. Rear brake light switch 2. Turn the adjusting nut while holding the rear brake light switch in direction a. To make the brake light come on earlier, turn the adjusting nut in direction b. 1. Rear brake light switch adjusting nut 8-32 To make the brake light come on just before braking takes effect. EBU00834 Adjusting the rear brake light switch The rear brake light switch, which is activated by the brake pedal and brake levers, is properly adjusted when the brake light...
Owners Manual
Page 143
...HOW TO AVOID THE HAZARD Inspect cables frequently. Recommended lubricant: Yamaha chain and cable lube or SAE 10W30 motor oil EBU00727 Brake and shift pedal/brake lever lubrication Lubricate the pivoting parts of controls could be restricted, which could cause an accident or injury. ...and the cable ends. Replace damaged cables. If the cables do not operate smoothly, ask a Yamaha dealer to replace them. EBU00356 Cable inspection and lubrication WARNING POTENTIAL HAZARD Damaged control cables. Cables can result when the outer covering of control cables becomes damaged. Operation ...
...HOW TO AVOID THE HAZARD Inspect cables frequently. Recommended lubricant: Yamaha chain and cable lube or SAE 10W30 motor oil EBU00727 Brake and shift pedal/brake lever lubrication Lubricate the pivoting parts of controls could be restricted, which could cause an accident or injury. ...and the cable ends. Replace damaged cables. If the cables do not operate smoothly, ask a Yamaha dealer to replace them. EBU00356 Cable inspection and lubrication WARNING POTENTIAL HAZARD Damaged control cables. Cables can result when the outer covering of control cables becomes damaged. Operation ...
Owners Manual
Page 148
... under the seat. 2. Spare fuse (× 2) 8-39 2. Spare main fuse 30 A 15 A 10 A 10 A 10 A 3A 1. Ignition fuse 4. Headlight fuse 3. If the fuse immediately blows again, consult a Yamaha dealer. Specified fuses: Main fuse: Headlight fuse: Ignition fuse: Auxiliary DC jack fuse: Carburetor warmer fuse: Four-wheel-drive fuse: 1. Four-wheel-drive fuse 3. Auxiliary DC jack fuse 5. Carburetor warmer fuse Then turn off the main switch and install a new fuse of the specified amperage. Main fuse 2. If a fuse is blown, turn on the switches. EBU00853 Fuse replacement 1.
... under the seat. 2. Spare fuse (× 2) 8-39 2. Spare main fuse 30 A 15 A 10 A 10 A 10 A 3A 1. Ignition fuse 4. Headlight fuse 3. If the fuse immediately blows again, consult a Yamaha dealer. Specified fuses: Main fuse: Headlight fuse: Ignition fuse: Auxiliary DC jack fuse: Carburetor warmer fuse: Four-wheel-drive fuse: 1. Four-wheel-drive fuse 3. Auxiliary DC jack fuse 5. Carburetor warmer fuse Then turn off the main switch and install a new fuse of the specified amperage. Main fuse 2. If a fuse is blown, turn on the switches. EBU00853 Fuse replacement 1.
Owners Manual
Page 157
... AND STORAGE CAUTION: Excessive water pressure may be used. CLEANING Frequent, thorough cleaning of your machine will not only enhance its appearance but will improve its general performance and extend the useful life of wheel bearings, brakes, transmission seals and electrical devices. Do not apply degreaser to do the job. 9-1 Once the majority of the exhaust pipe to -get-at...
... AND STORAGE CAUTION: Excessive water pressure may be used. CLEANING Frequent, thorough cleaning of your machine will not only enhance its appearance but will improve its general performance and extend the useful life of wheel bearings, brakes, transmission seals and electrical devices. Do not apply degreaser to do the job. 9-1 Once the majority of the exhaust pipe to -get-at...
Owners Manual
Page 159
... cylinder wall with a light film of fuel stabilizer and conditioner eliminates the need to each gallon of fuel (or 7.5 cc of stabilizer to drain the fuel system. Remove the spark plug, pour about one tablespoon of SAE 10W30 or 20W40 motor oil in a humid or salt-air atmosphere, coat all exposed metal surfaces with oil. 3. Lubricate all wheels off the ground. 5. Consult a Yamaha dealer if the fuel...
... cylinder wall with a light film of fuel stabilizer and conditioner eliminates the need to each gallon of fuel (or 7.5 cc of stabilizer to drain the fuel system. Remove the spark plug, pour about one tablespoon of SAE 10W30 or 20W40 motor oil in a humid or salt-air atmosphere, coat all exposed metal surfaces with oil. 3. Lubricate all wheels off the ground. 5. Consult a Yamaha dealer if the fuel...
Owners Manual
Page 166
MODEL Specified fuses: Main fuse Headlight fuse Ignition fuse Auxiliary DC jack fuse Carburetor warmer fuse Four-wheel-drive fuse 30 A 15 A 10 A 10 A 10 A 3A YFM400F 10-6
MODEL Specified fuses: Main fuse Headlight fuse Ignition fuse Auxiliary DC jack fuse Carburetor warmer fuse Four-wheel-drive fuse 30 A 15 A 10 A 10 A 10 A 3A YFM400F 10-6