Page 130 of 150

8-45
8
If a fuse is blown, replace it as follows.
1. Turn the key to “OFF” and turn off all electrical
circuits.
NOTICEECB00640To prevent accidental short-circuiting, turn off
the main switch when checking or replacing a
fuse.
2. Remove the blown fuse, and then install a
new fuse of the specified amperage.
WARNING! Always use a fuse of the spec-
ified rating, and never use a substitute ob-
ject in place of the proper fuse. An
improper fuse or a substitute object can
cause damage to the electrical system,
which could lead to a fire.
[EWB02172]
3. Turn the key to “ON” and turn on the electrical
circuits to check if the devices operate.
4. If the fuse immediately blows again, have a
Yamaha dealer check the electrical system.
1. Signaling system fuse
2. Headlight fuse
3. Ignition fuse
4. Fuel injection system fuse
5. Spare fuse
1
2
3
4 5
Specified fuses:
Main fuse:
20.0 A
Headlight fuse:
15.0 A
Ignition fuse:
10.0 A
Signaling system fuse:
10.0 A
Fuel injection system fuse:
10.0 A
U1AS60E0.book Page 45 Friday, February 6, 2009 1:27 PM
Page 134 of 150

8-49
8
TIPWhen installing the wheel, make sure its arrow
mark points toward the rotating direction of the
wheel.3. Lower the ATV to the ground.
4. Tighten the wheel nuts to the specified
torques.
EBU25740Troubleshooting Although Yamaha ATVs receive a thorough in-
spection before shipment from the factory, trouble
may occur during operation. Any problem in the fu-
el, compression, or ignition systems, for example,
can cause poor starting and loss of power.
The following troubleshooting charts represent
quick and easy procedures for checking these vital
systems yourself. However, should your ATV re-
quire any repair, take it to a Yamaha dealer, whose
skilled technicians have the necessary tools, expe-
rience, and know-how to service the ATV properly.
Use only genuine Yamaha replacement parts. Im-
itation parts may look like Yamaha parts, but they
are often inferior, have a shorter service life and
can lead to expensive repair bills.
WARNING
EWB02280Do not smoke when checking the fuel system.
Fuel can ignite or explode, causing severe inju-
ry or property damage. Make sure there are no
open flames or sparks in the area, including pi-
lot lights from water heaters or furnaces.
1. Arrow markTightening torques:
Front wheel nut:
45 Nm (4.5 m·kgf, 32 ft·lbf)
Rear wheel nut:
45 Nm (4.5 m·kgf, 32 ft·lbf)
U1AS60E0.book Page 49 Friday, February 6, 2009 1:27 PM
Page 143 of 150
10-4
10
Front 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 damper
Wheel travel:
256 mm (10.1 in)Electrical system:Ignition system:
TCI (digital)Charging system:
AC magneto
Battery: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
Engine trouble warning light:
LEDFuses:Main fuse:
20.0 A
U1AS60E0.book Page 4 Friday, February 6, 2009 1:27 PM
Page 148 of 150

INDEX
AAccessories and loading ................................................ 6-7
Air filter element, cleaning ............................................ 8-20BBattery .......................................................................... 8-41
Brake and clutch levers, checking and lubricating ....... 8-38
Brake fluid, changing .................................................... 8-31
Brake fluid level, checking ............................................ 8-29
Brake lever ..................................................................... 4-8
Brake lever free play, checking the front ...................... 8-31
Brake light switches ..................................................... 8-33
Brake pads, checking the front and rear ...................... 8-28
Brake pedal .................................................................... 4-8
Brake pedal, checking and lubricating ......................... 8-39
Brake pedal position, checking .................................... 8-32
Brakes .......................................................................... 8-28
Brakes, front and rear .................................................... 5-3CCables, checking and lubricating ................................. 8-38
Chassis fasteners ........................................................... 5-6
Cleaning ......................................................................... 9-1
Clutch lever .................................................................... 4-7
Clutch lever free play, adjusting ................................... 8-34
Coolant .................................................................. 5-3, 8-17
Coolant temperature warning light ................................. 4-2DDrive chain ..................................................................... 5-4
Drive chain, lubricating ................................................. 8-37Drive chain slack .......................................................... 8-35
EEngine break-in .............................................................. 6-5
Engine idling speed ...................................................... 8-26
Engine oil ....................................................................... 5-3
Engine oil and oil filter element .................................... 8-12
Engine, start ................................................................... 6-1
Engine stop switch ......................................................... 4-5
Engine trouble warning light ........................................... 4-3FFuel ....................................................................... 4-11, 5-3
Fuel level warning light ................................................... 4-3
Fuel tank cap ................................................................ 4-11
Fuses, replacing ........................................................... 8-44HHandlebar switches ........................................................ 4-5
Headlight beam, adjusting ............................................ 8-47
Headlight bulb, replacing .............................................. 8-46IIdentification numbers .................................................. 11-1
Indicator lights and warning lights .................................. 4-2
Instruments, lights and switches .................................... 5-6KKey identification number ............................................. 11-1LLabel locations ............................................................... 1-1
Light switch .................................................................... 4-6
U1AS60E0.book Page 1 Friday, February 6, 2009 1:27 PM