YAMAHA GRIZZLY 125 2009 Owners Manual

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4. Loosen the chain adjusting bolt locknut. To
tighten the drive chain, turn the adjusting bolt
in direction (a). To loosen the drive chain, turn
the adjusting bolt in direction (b), and then
push the wheels forward.
NOTICE

ECB00541
Improper drive chain slack will overload the en-
gine as well as other vital parts of the ATV and
can lead to drive chain slippage or breakage.
To prevent this from occurring, keep the drive
chain slack within the specified limits.
5. Tighten the locknut and the axle holding bolts
to the specified torques.
1. Hub stopper bolt
2. Locknut
3. Axle holding bolt (lower)
4. Axle holding bolt (upper)
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1. Locknut
2. Drive chain slack adjusting bolt
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(a)
(b)

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NOTICE

ECB00550
If measurement “A” of the drive chain adjust-
ing bolt is less than 27 mm (1.06 in), have a
Yamaha dealer replace the drive chain.
6. Tighten the hub stopper bolt, and then its lock-
nut.
EBU24880
Lubricating the drive chain
The drive chain must be cleaned and lubricated at
the intervals specified in the periodic maintenance
and lubrication chart, otherwise it will quickly wear
out, especially when riding in dusty or wet areas.
Service the drive chain as follows. Tightening torques:
Chain adjusting bolt locknut:
15.5 Nm (1.6 m·kgf, 11.2 ft·lbf)
Axle holding bolt (upper):
85 Nm (8.5 m·kgf, 61.5 ft·lbf)
Axle holding bolt (lower):
60 Nm (6.0 m·kgf, 43.4 ft·lbf)
1. Measurement A
1

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NOTICE

ECB00560
The drive chain must be lubricated after wash-
ing the ATV or riding in the rain.
1. Clean the drive chain with kerosene and a
small soft brush.
NOTICE

ECB00570
To prevent damaging the O-rings, do not clean
the drive chain with steam cleaners, high-pres-
sure washers or inappropriate solvents.
2. Wipe the drive chain dry.3. Thoroughly lubricate the drive chain with a
special O-ring chain lubricant.NOTICE
ECB00580
Do not use engine oil or any other lubricants
for the drive chain, as they may contain sub-
stances that could damage the O-rings.
EBU24900
Checking and lubricating the cables
The operation and the condition of all control ca-
bles should be checked before each ride, and the
cables and cable ends should be lubricated if nec-
essary. If a cable is damaged or does not move
smoothly, have a Yamaha dealer check or replace
it.WARNING

EWB02130
Inspect cables frequently and replace if dam-
aged. Corrosion can result when the cable
sheaths become damaged, and cables can
also become frayed or kinked, which could re-
strict the operation of controls and lead to an
1. O-ring
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Recommended lubricant:
Engine oil

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accident or injury.
EBU24912
Checking and lubricating the front and
rear brake levers
The operation of the front and rear brake levers
should be checked before each ride, and the lever
pivots should be lubricated if necessary.
Front brake leverRear brake lever
EBU24962
Checking the wheel hub bearings
The front and rear wheel hub bearings must be
checked at the intervals specified in the periodic
maintenance and lubrication chart. If there is play
in a wheel hub or if a wheel does not turn smoothly,
have a Yamaha dealer check the wheel hub bear-
ings.
EBU25032
Lubricating the upper and lower arm
pivots
The upper and lower arm pivots must be lubricated
at the intervals specified in the periodic mainte- Recommended lubricant:
Silicone grease

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nance and lubrication chart.
Lubricate the pivoting points using a grease gun.
Left sideRight side
EBU28821
Lubricating the front knuckle pivots
The front knuckle pivots must be lubricated at the
intervals specified in the periodic maintenance and
lubrication chart.
Lubricate the front knuckle pivots using a grease
gun. Recommended lubricant:
Lithium-soap-based grease
1. Grease nipple
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1. Grease nipple
Recommended lubricant:
Lithium-soap-based grease (all-purpose
grease)
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EBU25102
Lubricating the steering shaft
The steering shaft must be lubricated at the inter-
vals specified in the periodic maintenance and lu-
brication chart.
EBU25121
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.
To check the electrolyte level
1. Place the ATV on a level surface.
2. Check the electrolyte level in the battery.
1. Grease nipple
Recommended lubricant:
Lithium-soap-based grease
1

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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
ECB00590
Use only distilled water, as tap water contains
minerals that are harmful to the battery.
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.
1. Battery
2. Battery breather hose
3. Guide
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1. Maximum level mark
2. Minimum level mark
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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.
4. Check and, if necessary, tighten the battery
lead connections and correct the breather
hose routing.
To store the battery
If the ATV will not be used for more than one
month, the battery will need to be removed and
stored as follows.
1. Disconnect the negative lead first and then the
positive lead.2. Remove the battery, fully charge it, and then
place it in a cool, dry place.
NOTICE
ECB00600
Do not leave or store the battery on its side.
3. If the battery will be stored for more than two
months, check the specific gravity of the elec-
trolyte at least once a month and fully charge
the battery whenever necessary.
1. Battery
2. Negative battery lead (black)
3. Positive battery lead (red)
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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.
3. Make sure that the breather hose is properly
routed, in good condition, and not obstructed.
NOTICE
ECB00610
If the breather hose is positioned in such a way
that the frame is exposed to electrolyte or gas
expelled from the battery, the frame could suf-
fer structural and external damages.
EBU25262
Replacing the fuse
The fuse holder is located on the right side of the
ATV.
1. Battery
2. Negative battery lead (black)
3. Positive battery lead (red)
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1. Fuse
2. Spare fuse
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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