2010 YAMAHA GRIZZLY 250 battery

8-38
8
EBU29872Battery 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
EWB02160Battery 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. Remove the battery cover by pulling it upward. Recommended lubricant:
Lithium-soap-based grease
1. Grease nippleU1P065E0.book Page 38 Monday, August 31, 2009 1:10 PM

8-39
83. Check the electrolyte level in the battery.
TIPThe electrolyte should be between the minimum
and maximum level marks.4. 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]
1. Battery cover
1. Battery
2. Maximum level mark
3. Minimum level mark
U1P065E0.book Page 39 Monday, August 31, 2009 1:10 PM

8-40
8 5. Check and, if necessary, tighten the battery
lead connections and correct the breather
hose routing as explained in step 5 of “To in-
stall the battery”.
6. Install the battery cover.
To remove the battery
1. Remove the battery cover by pulling it upward.
2. Disconnect the negative battery lead.
NOTICE: When removing the battery, the
main switch must be off, and the negative
lead must be disconnected before the pos-
itive lead.
[ECB01001]
3. Remove the battery holding plate by removing
the bolts.
4. Disconnect the positive battery lead.
5. 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.1. Battery
2. Battery holding plate
3. Bolt
4. Positive battery lead (red)
5. Negative battery lead (black)
U1P065E0.book Page 40 Monday, August 31, 2009 1:10 PM

8-41
8
NOTICEECB01100
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 batteryTIPBe sure the battery is fully charged.1. Install the battery.
2. Connect the positive battery lead.
3. Install the holding plate by installing the bolts.
4. Connect the negative battery lead.
5. Make sure that the breather hose is properly
routed, in good condition, and not obstructed.
The breather hose end should measure 50.0–
60.0 mm (1.97–2.36 in) past the bottom hose
clamp.NOTICE: If the breather hose is posi-
tioned in such a way that the frame is ex-
posed to electrolyte or gas expelled from
the battery, the frame could suffer struc-
tural and external damages.
[ECB00611]
6. Install the battery cover.1. Battery
2. Battery breather hose
3. Hose clamp
4. Breather hose end
4
1
23
U1P065E0.book Page 41 Monday, August 31, 2009 1:10 PM

8-48
8
EBU25791Troubleshooting 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.
U1P065E0.book Page 48 Monday, August 31, 2009 1:10 PM

9-3
9ly, 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
8-38.
TIPMake any necessary repairs before storing the
ATV.U1P065E0.book Page 3 Monday, August 31, 2009 1:10 PM

10-4
10
Rim size:
10 x 8.0ATFront brake:Type:
Dual disc brake
Operation:
Right hand operation
Recommended fluid:
DOT 4Rear brake:Type:
Drum brake
Operation:
Left hand and right foot operationFront suspension:Type:
Strut
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
125 mm (5.0 in)Rear suspension:Type:
Swingarm (monocross)
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
135 mm (5.3 in)Electrical system:Ignition system:
DC. CDICharging system:
AC magneto
Battery:Model:
CB14A-A2
Voltage, capacity:
12 V, 14.0 AhHeadlight:Bulb type:
Krypton bulbBulb 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 × 1Fuse:Fuse:
20.0 A
U1P065E0.book Page 4 Monday, August 31, 2009 1:10 PM

INDEX
AAccessories and loading ................................................ 6-8
Air filter element, cleaning ............................................ 8-20BBattery ................................................................... 5-6, 8-38
Brake fluid, changing ................................................... 8-29
Brake fluid level, checking ........................................... 8-29
Brake lever free play, checking the front ...................... 8-30
Brake lever, front ............................................................ 4-4
Brake levers, checking and lubricating ........................ 8-35
Brake light switches ..................................................... 8-33
Brake pads and shoes, checking ................................. 8-27
Brake pedal and rear brake lever ................................... 4-5
Brake pedal, checking and lubricating ......................... 8-36
Brake pedal position, free play and brake lever free
play (rear), adjusting .................................................. 8-30
Brakes .......................................................................... 8-27
Brakes, front and rear .................................................... 5-3CCables, checking and lubricating ................................. 8-35
Carburetor, adjusting ................................................... 8-25
Carrier, front ................................................................. 4-13
Carrier, rear .................................................................. 4-13
Chassis fasteners .......................................................... 5-6
Cleaning ......................................................................... 9-1
Clutch free play, adjusting ............................................ 8-34DDrive select lever ........................................................... 4-7Drive select lever and driving in reverse ........................ 6-3
Drive select lever safety system cable, adjusting ........ 8-27
EEngine break-in .............................................................. 6-6
Engine, cold start ........................................................... 6-1
Engine idling speed ..................................................... 8-25
Engine oil ....................................................................... 5-3
Engine oil and oil filter element .................................... 8-11
Engine, starting a warm ................................................. 6-2
Engine stop switch ......................................................... 4-2FFinal gear oil ......................................................... 5-3, 8-17
Fuel ......................................................................... 4-8, 5-3
Fuel cock ....................................................................... 4-9
Fuel tank cap ................................................................. 4-7
Fuse, replacing ............................................................ 8-42HHandlebar switches ....................................................... 4-2
Headlight beam, adjusting ........................................... 8-44
Headlight bulb, replacing ............................................. 8-42
Horn switch .................................................................... 4-3IIdentification numbers .................................................. 11-1
Indicator lights ................................................................ 4-2
Instruments, lights and switches .................................... 5-6LLabel locations ............................................................... 1-1
Light switch .................................................................... 4-3
U1P065E0.book Page 1 Monday, August 31, 2009 1:10 PM