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8-52
8
EBU27691Troubleshooting charts Starting problems or poor engine performance
Check the fuel level in
the fuel tank.1. Fuel
There is enough fuel.
There is no fuel.
Check the compression.
Supply fuel.
The engine does not start.
Check the compression.
Operate the electric starter.2. Compression
There is compression.
There is no compression.
Check the ignition.
Have a Yamaha dealer
check the ATV.
Remove the spark plug
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gap, or replace the spark plug.
Have a Yamaha dealer check the ATV.
The engine does not start.
Have a Yamaha dealer
check the ATV.
The engine does not start.
Check the battery.
Operate the electric starter.4. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.Check the battery lead connections,
and charge the battery if necessary.
DryWet
Operate the electric starter.
U1AS61E0.book Page 52 Thursday, February 11, 2010 2:17 PM
Page 143 of 154
9-3
9 6. Cover the muffler outlet with a plastic bag to
prevent moisture from entering it.
7. Remove the battery and fully charge it. Store
it in a cool, dry place and charge it once a
month. Do not store the battery in an exces-
sively cold or warm place [less than 0 °C (30
°F) or more than 30 °C (90 °F)]. For more in-
formation on storing the battery, see page
8-43.
TIPMake any necessary repairs before storing the
ATV.U1AS61E0.book Page 3 Thursday, February 11, 2010 2:17 PM
Page 147 of 154
10-4
10
Rear wheel:Wheel type:
Panel wheel
Rim size:
9 x 8.0ATFront brake:Type:
Dual disc brake
Operation:
Right hand operation
Recommended fluid:
DOT 4Rear brake:Type:
Single disc brake
Operation:
Right foot operation
Recommended fluid:
DOT 4Front suspension:Type:
Double wishbone
Spring/shock absorber type:
Coil spring/gas-oil damper
Wheel travel:
230 mm (9.1 in)Rear suspension:Type:
Swingarm (link suspension)
Spring/shock absorber type:
Coil spring/gas-oil damperWheel travel:
256 mm (10.1 in)
Electrical system:Ignition system:
TCI
Charging system:
AC magnetoBattery:Model:
GT9B-4
Voltage, capacity:
12 V, 8.0 AhHeadlight:Bulb type:
Krypton bulbBulb voltage, wattage × quantity:Headlight:
12 V, 30/30 W × 2
Tail/brake light:
LED
Meter lighting:
EL
Neutral indicator light:
LED
Fuel level warning light:
LED
Reverse indicator light:
LED
Coolant temperature warning light:
LED
U1AS61E0.book Page 4 Thursday, February 11, 2010 2:17 PM
Page 151 of 154

INDEX
AAccessories and loading ................................................ 6-7
Air filter element, cleaning ............................................ 8-20BBattery .......................................................................... 8-43
Brake and clutch levers, checking and lubricating ....... 8-40
Brake fluid, changing ................................................... 8-32
Brake fluid level, checking ........................................... 8-30
Brake lever ..................................................................... 4-8
Brake lever free play, checking the front ...................... 8-32
Brake light switches ..................................................... 8-34
Brake pads, checking the front and rear ...................... 8-29
Brake pedal .................................................................... 4-8
Brake pedal, checking and lubricating ......................... 8-40
Brake pedal position, checking .................................... 8-32
Brakes .......................................................................... 8-28
Brakes, front and rear .................................................... 5-4CCables, checking and lubricating ................................. 8-39
Chassis fasteners .......................................................... 5-7
Cleaning ......................................................................... 9-1
Clutch lever .................................................................... 4-7
Clutch lever free play, adjusting ................................... 8-35
Coolant .................................................................. 5-4, 8-16
Coolant temperature warning light ................................. 4-2DDrive chain ..................................................................... 5-5
Drive chain, lubricating ................................................. 8-38Drive chain slack .......................................................... 8-36
EEngine break-in .............................................................. 6-5
Engine idling speed ..................................................... 8-26
Engine oil ....................................................................... 5-4
Engine oil and oil filter element .................................... 8-12
Engine, start ................................................................... 6-1
Engine stop switch ......................................................... 4-6
Engine trouble warning light .......................................... 4-3FFuel ....................................................................... 4-11, 5-4
Fuel level warning light .................................................. 4-3
Fuel tank cap ............................................................... 4-11
Fuses, replacing .......................................................... 8-46HHandlebar switches ....................................................... 4-5
Headlight beam, adjusting ........................................... 8-49
Headlight bulb, replacing ............................................. 8-48IIdentification numbers .................................................. 11-1
Indicator lights and warning lights .................................. 4-2
Instruments, lights and switches .................................... 5-7LLabel locations ............................................................... 1-1
Light switch .................................................................... 4-6MMain switch .................................................................... 4-1
Maintenance and lubrication chart ................................. 8-5
U1AS61E0.book Page 1 Thursday, February 11, 2010 2:17 PM