Page 89 of 130
8-21
1
2
3
4
5
6
78
9
10
11
6. Tap the air filter element lightly to remove
most of the dust and dirt. Blow out the remain-
ing dirt with compressed air as shown.7. Check the air filter element and replace it if
damaged.
8. Install the air filter element into the air filter
case.
9. Install the air filter case cover by installing the
screw.
10. Connect the coupler, and then install the pan-
el by installing the quick fasteners.
11. Install the front carrier by installing the bolts.
EBU23930
V-belt case drain plug
After riding in water deep enough to allow it to en-
1. Air filter element
1
1. Air filter element
1
Page 110 of 130

8-42
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3
4
5
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78
9
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11
If the fuse is blown, replace it as follows.
1. Turn the key to “OFF” and turn off all electrical
circuits.
NOTICE
ECB00640
To 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
EWB02171
Always use a fuse of the specified rating, and
never use a substitute object in place of the
proper fuse. An improper fuse or a substitute
object can cause damage to the electrical sys-
tem, which could lead to a fire.
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.
EBU25480
Replacing a headlight bulb
If a headlight bulb burns out, replace it as follows.
1. Remove the cover at the rear of the headlight
by pulling it off.
2. Remove the headlight bulb holder cover by
pulling it off. Specified fuse:
15.0 A
1. Cover at the rear of the headlight
1
Page 111 of 130
8-43
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2
3
4
5
6
78
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11
3. Remove the headlight bulb holder by pushing
it in and turning it counterclockwise.
4. Remove the defective bulb by pulling it out.
WARNING
EWB02220
A headlight bulb is hot when it is on and imme-
diately after it is turned off. Wait for the bulb to
cool before touching or removing it. You can
be burned or a fire could start if the bulb touch-
es something flammable.
5. Insert a new headlight bulb into the bulb hold-er by pushing it in.
NOTICE
ECB00650
Do not touch the glass part of the headlight
bulb to keep it free from oil, otherwise the
transparency of the glass, the luminosity of the
bulb, and the bulb life will be adversely affect-
ed. Thoroughly clean off any dirt and finger-
prints on the headlight bulb using a cloth
moistened with alcohol or thinner.
6. Install the bulb holder by pushing it in and turn-
ing it clockwise.
1. Headlight bulb holder cover
2. Headlight bulb holder
12
1. Headlight bulb1
Page 112 of 130
8-44
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2
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6
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7. Install the bulb holder cover and the cover at
the rear of the headlight.
NOTICE
ECB00670
Make sure the headlight bulb holder cover is
securely fitted over the bulb holder and seated
properly.
8. Adjust the headlight beam if necessary.
EBU25551
Adjusting a headlight beam
NOTICE
ECB00690
It is advisable to have a Yamaha dealer make
this adjustment.
To raise a headlight beam, turn the headlight beam
adjusting screw in direction (a).
To lower a headlight beam, turn the adjusting
screw in direction (b).
EBU25610
Replacing the tail/brake light bulb
If the tail/brake light bulb burns out, replace it as
follows.
1. Remove the bulb holder (together with the
bulb) by turning it counterclockwise.
1. Headlight beam adjusting screw
1(a)
(b)
Page 113 of 130
8-45
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2. Remove the defective bulb by pushing it in
and turning it counterclockwise.3. Insert a new bulb into the bulb holder, push it
in, and then turn it clockwise until it stops.
4. Install the bulb holder (together with the bulb)
by turning it clockwise.
EBU25651
Removing a wheel
1. Place the ATV on a level surface.
2. Loosen the wheel nuts.
1. Tail/brake light bulb holder
1
1. Tail/brake light bulb
2. Tail/brake light bulb holder
12
Page 115 of 130

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EBU25720
Troubleshooting
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 chart represents a
quick and easy procedure 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
EWB02280
Do 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.
Tightening torques:
Front wheel nut:
55 Nm (5.5 m·kgf, 39.8 ft·lbf)
Rear wheel nut:
55 Nm (5.5 m·kgf, 39.8 ft·lbf)
Page 123 of 130
10-4
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2
3
4
5
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7
8
910
11
Front suspension:
Type:
Swing axle
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
70 mm (2.8 in)
Rear suspension:
Type:
Swingarm
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
80 mm (3.1 in)
Electrical system:
Ignition system:
DC. CDI
Charging system:
AC magneto
Battery:
Model:
12N12C-4A-2
Voltage, capacity:
12 V, 12.0 Ah
Headlight:
Bulb type:
Krypton bulb
Bulb voltage, wattage
×
quantity:
Headlight:
12 V, 30.0/30.0 W
×
2Tail/brake light:
12 V, 5.0/21.0 W
×
1
Neutral indicator light:
12 V, 1.7 W
×
1
Reverse indicator light:
12 V, 1.7 W
×
1
Fuses:
Main fuse:
15.0 A
Page 127 of 130

INDEX
A
Accessories and loading ................................................ 6-6
Air filter elements, engine and V-belt filter cleaning ..... 8-15
B
Battery .................................................................. 5-6
,
8-38
Brake lever free play, adjusting the front...................... 8-25
Brake lever free play (rear), adjusting .......................... 8-30
Brake lever, front ............................................................ 4-4
Brake lever, rear............................................................. 4-4
Brake levers, checking and lubricating......................... 8-36
Brakes, front and rear .................................................... 5-3
Brake shoes, checking the front and rear .................... 8-24
C
Cables, checking and lubricating ................................. 8-35
Carburetor, adjusting.................................................... 8-22
Carrier, front ................................................................. 4-10
Carrier, rear .................................................................. 4-10
Chassis fasteners........................................................... 5-6
Cleaning ......................................................................... 9-1
D
Drive chain ..................................................................... 5-4
Drive chain, lubricating ................................................. 8-34
Drive chain slack .......................................................... 8-32
Drive select lever............................................................ 4-6
Drive select lever and driving in reverse ........................ 6-3
E
Engine break-in .............................................................. 6-4
Engine, cold start ........................................................... 6-1
Engine idling speed ...................................................... 8-22
Engine oil ............................................................... 5-3
,
8-9
Engine, starting a warm ................................................. 6-3
Engine stop switch ......................................................... 4-2
F
Front knuckle pivots, lubricating ................................... 8-37
Fuel ........................................................................ 4-6
,
5-3
Fuel cock ........................................................................ 4-7
Fuel tank cap.................................................................. 4-6
Fuse, replacing............................................................. 8-41
H
Handlebar switches ........................................................ 4-2
Headlight beam, adjusting............................................ 8-44
Headlight bulb, replacing.............................................. 8-42
I
Identification numbers .................................................. 11-1
Indicator lights ................................................................ 4-1
Instruments, lights and switches .................................... 5-6
K
Key identification number ............................................. 11-1
L
Label locations ............................................................... 2-1
Light switch .................................................................... 4-2