Page 109 of 132

8-40
1
2
3
4
5
6
78
9
10
11
EBU25126
Battery
A poorly maintained battery will corrode and dis-
charge quickly. The electrolyte level, battery lead
connections and breather hose routing should be
checked before each ride and at the intervals
specified in the periodic maintenance and lubrica-
tion chart.
WARNING
EWB02160
Battery electrolyte is poisonous and danger-
ous, as it contains sulfuric acid, which can
cause severe burns. Avoid contact with skin,eyes or clothing. Always shield your eyes
when working near batteries.
Antidote:
EXTERNAL: Flush with water.
INTERNAL: Drink large quantities of water or
milk. Follow with milk of magnesia, beaten egg
or vegetable oil. Call a physician immediately.
EYES: Flush with water for 15 minutes and get
prompt medical attention.
Batteries produce explosive gases. Keep
sparks, flame, cigarettes or other sources of ig-
nition away. Ventilate when charging or using
in an enclosed space.
KEEP OUT OF REACH OF CHILDREN.
To check the electrolyte level
1. Place the ATV on a level surface.
2. Check the electrolyte level in the battery.
1. Grease nipple
1
Page 110 of 132
8-41
1
2
3
4
5
6
78
9
10
11
TIP
The electrolyte should be between the minimum
and maximum level marks.
3. If the electrolyte is at or below the minimum
level mark, add distilled water to raise it to the
maximum level mark.
NOTICE:
Use only dis-
tilled water, as tap water contains minerals
that are harmful to the battery.
[ECB00591]
4. Check and, if necessary, tighten the battery
lead connections and correct the breather
hose routing.
To remove the battery
1. Disconnect the negative lead first and then the
positive lead.
NOTICE:
When removing the
battery, the main switch must be off, and
the negative lead must be disconnected
before the positive lead.
[ECB01001]
1. Battery
2. Battery breather hose
3. Guide
1
2
3
1. Maximum level mark
2. Minimum level mark
1
2
Page 111 of 132

8-42
1
2
3
4
5
6
78
9
10
11
2. Remove the battery.
To store the battery
If the ATV will not be used for more than one
month, remove the battery, fully charge it, and
then place it in a cool, dry place.
If the battery will be stored for more than two
months, check the specific gravity of the electro-
lyte at least once a month and fully charge the
battery whenever necessary.NOTICE
ECB01100
Always keep the battery charged. Storing a
discharged battery can cause permanent
battery damage.
Do not leave or store the battery on its side.
To install the battery
TIP
Be sure the battery is fully charged.
1. Install the battery.
2. Connect the positive lead first, and then con-
nect the negative lead.
NOTICE:
When in-
stalling the battery, the main switch must
be off, and the positive lead must be con-
nected before the negative lead.
[ECB01110]
3. Make sure that the breather hose is properly
routed, in good condition, and not obstructed.
NOTICE:
If the breather hose is positioned
in such a way that the frame is exposed to
electrolyte or gas expelled from the bat-
tery, the frame could suffer structural and
external damages.
[ECB00611]
1. Battery
2. Negative battery lead (black)
3. Positive battery lead (red)
1
2
3
Page 112 of 132
8-43
1
2
3
4
5
6
78
9
10
11
EBU25263
Replacing the fuse
The fuse holder is located on the right side of the
ATV.
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 replac-
1. Battery
2. Negative battery lead (black)
3. Positive battery lead (red)
1
2
3
1. Fuse
2. Spare fuse
12
Page 119 of 132
8-50
1
2
3
4
5
6
78
9
10
11
EBU25791
Troubleshooting chart
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 electrolyte level, recharge the
battery and check the lead connections.
DryWet
Open the throttle halfway and operate
the electric starter.
Page 122 of 132
9-3
1
2
3
4
5
6
7
89
10
11
ly, turn the wheels a little every month in order
to prevent the tires from becoming degraded
in one spot.
8. Cover the muffler outlet with a plastic bag to
prevent moisture from entering it.
9. 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
8-40.
TIP
Make any necessary repairs before storing the
ATV.
Page 126 of 132
10-4
1
2
3
4
5
6
7
8
910
11
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, 30/30 W
×
2
Tail/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 129 of 132

INDEX
A
Accessories and loading ................................................ 6-6
Air filter elements, engine and V-belt filter cleaning ..... 8-15
B
Battery .................................................................. 5-6
,
8-40
Brake lever free play, adjusting the front...................... 8-27
Brake lever free play (rear), adjusting .......................... 8-32
Brake lever, front ............................................................ 4-4
Brake lever, rear............................................................. 4-4
Brake levers, checking and lubricating......................... 8-36
Brakes .......................................................................... 8-26
Brakes, front and rear .................................................... 5-3
Brake shoes, checking the front and rear .................... 8-26
C
Cables, checking and lubricating ................................. 8-36
Carburetor, adjusting.................................................... 8-24
Carrier, front ................................................................. 4-11
Carrier, rear .................................................................. 4-11
Chassis fasteners........................................................... 5-5
Cleaning ......................................................................... 9-1
D
Drive chain ..................................................................... 5-3
Drive chain, lubricating ................................................. 8-35
Drive chain slack .......................................................... 8-33
Drive select lever............................................................ 4-6
Drive select lever and driving in reverse ........................ 6-3
E
Engine break-in .............................................................. 6-4Engine, cold start ........................................................... 6-1
Engine idling speed ...................................................... 8-24
Engine oil ............................................................... 5-3
,
8-9
Engine, starting a warm ................................................. 6-2
Engine stop switch ......................................................... 4-2
F
Front knuckle pivots, lubricating ................................... 8-39
Fuel ........................................................................ 4-6
,
5-3
Fuel cock ........................................................................ 4-8
Fuel tank cap.................................................................. 4-6
Fuse, replacing............................................................. 8-43
H
Handlebar switches ........................................................ 4-2
Headlight beam, adjusting............................................ 8-46
Headlight bulb, replacing.............................................. 8-44
Horn switch .................................................................... 4-2
I
Identification numbers .................................................. 11-1
Indicator lights ................................................................ 4-1
Instruments, lights and switches .................................... 5-6
L
Label locations ............................................................... 1-1
Light switch .................................................................... 4-2
M
Main switch .................................................................... 4-1
Maintenance and lubrication chart ................................. 8-5
Maintenance chart, emission control system ................. 8-3
Model label ................................................................... 11-2