YAMAHA GRIZZLY 125 2012 Owners Manual
Page 101 of 132
8-32
8 7. Tighten the locknut on each brake cable.
8. Turn the brake lever free play adjusting bolt in
direction (a) to increase the free play, and in
direction (b) to decrease it.
9. Tighten the locknut at the brake lever.
10. Install the V-belt air filter element cover by in-
stalling the screw.
11. Connect the coupler, and then install the pan-
el by installing the quick fasteners.
12. Install the front carrier by installing the bolts,
and then tighten them to the specified torque.
EBU30440Adjusting the rear brake lever free play The brake lever free play must be checked and, if
necessary, adjusted at the intervals specified in the
periodic maintenance and lubrication chart.TIPBefore adjusting the brake lever free play, check
the rear brake shoes for wear.The brake lever free play should measure 5.0–8.0
mm (0.20–0.31 in) as shown. If the free play is in-
correct, adjust it as follows.
1. Locknut
2. Brake lever free play adjusting bolt
3. Brake lever free play
3
1
2
(b)
(a)
Tightening torque:
Front carrier bolt:
7 Nm (0.7 m·kgf, 5.1 ft·lbf)
U1PY60E0.book Page 32 Friday, March 11, 2011 9:30 AM
Page 102 of 132
8-33
81. Loosen the locknut.
2. Turn the brake lever free play adjusting bolt in
direction (a) to increase the free play, and in
direction (b) to decrease it.3. If the correct free play cannot be obtained as
described above, turn the adjusting bolt fully in
direction (a), and then adjust the free play us-
ing the brake lever free play adjusting nut on
the rear wheel hub.
4. Turn the brake lever free play adjusting nut on
the rear wheel hub in direction (a) to increase
the free play, and in direction (b) to decrease
it.
1. Brake lever free play
1
1. Locknut
2. Brake lever free play adjusting bolt
(a)
(b)2 1
U1PY60E0.book Page 33 Friday, March 11, 2011 9:30 AM
Page 103 of 132
8-34
8 5. Use the adjusting bolt to obtain a precise ad-
justment if necessary, and then tighten the
locknut. If the correct free play cannot be ob-
tained, have a Yamaha dealer adjust it.
EBU24874Drive chain slack The drive chain slack should be checked before
each ride and adjusted if necessary.
To check the drive chain slack
1. Place the ATV on a level surface.
TIPWhen checking and adjusting the drive chain
slack, there should be no weight on the ATV and
all tires must be touching the ground.2. Move the ATV back and forth to locate the
tightest portion of the drive chain, and then
measure the drive chain slack as shown.
3. If the drive chain slack is incorrect, adjust it as
follows.
1. Brake lever free play adjusting nut
1
(a)
(b)
Drive chain slack:
30.0 mm (1.18 in)1. Drive chain slack
1
U1PY60E0.book Page 34 Friday, March 11, 2011 9:30 AM
Page 104 of 132
8-35
8To adjust the drive chain slack
1. Place the ATV on a level surface.
2. Loosen the hub stopper bolt locknut and then
the hub stopper bolt.
3. Loosen the axle holding bolts.
4. Loosen the drive chain slack adjusting bolt
locknut. To tighten the drive chain, turn the ad-
justing bolt in direction (a). To loosen the drive
chain, turn the adjusting bolt in direction (b),
and then push the wheels forward. NOTICE:
Improper drive chain slack will overloadthe engine as well as other vital parts of
the ATV and can lead to drive chain slip-
page or breakage. To prevent this from oc-
curring, keep the drive chain slack within
the specified limits.
[ECB00542]
5. Tighten the drive chain slack adjusting bolt
locknut and the axle holding bolts to the spec-
ified torques.
1. Hub stopper bolt
2. Hub stopper bolt locknut
3. Axle holding bolt (lower)
4. Axle holding bolt (upper)1
2
34
1. Locknut
2. Drive chain slack adjusting bolt
1
2
(a)
(b)
U1PY60E0.book Page 35 Friday, March 11, 2011 9:30 AM
Page 105 of 132
8-36
8
NOTICEECB00551If measurement “A” of the drive chain slack ad-
justing bolt is less than 27 mm (1.06 in), have a
Yamaha dealer replace the drive chain.
6. Tighten the hub stopper bolt and hub stopper
bolt locknut to the specified torques.EBU24882Lubricating 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.NOTICEECB00561The drive chain must be lubricated after wash-
ing the ATV or riding in the rain or wet areas.1. Clean the drive chain with kerosene and a
small soft brush. NOTICE: To prevent dam-
aging the O-rings, do not clean the drive
chain with steam cleaners, high-pressure
washers or inappropriate solvents.
[ECB00571]
Tightening torques:
Drive chain slack adjusting bolt locknut:
16 Nm (1.6 m·kgf, 12 ft·lbf)
Axle holding bolt (upper):
85 Nm (8.5 m·kgf, 61 ft·lbf)
Axle holding bolt (lower):
60 Nm (6.0 m·kgf, 43 ft·lbf)1. Measurement A
1
Tightening torques:
Hub stopper bolt:
16 Nm (1.6 m·kgf, 12 ft·lbf)
Hub stopper bolt locknut:
16 Nm (1.6 m·kgf, 12 ft·lbf)
U1PY60E0.book Page 36 Friday, March 11, 2011 9:30 AM
Page 106 of 132
8-37
82. Wipe the drive chain dry.
3. Thoroughly lubricate the drive chain with a
special O-ring chain lubricant. NOTICE: Do
not use engine oil or any other lubricants
for the drive chain, as they may contain
substances that could damage the O-
rings.
[ECB00581]
EBU24901
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
EWB02581Inspect 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
restrict the operation of controls and lead to
an accident or injury.Always make sure all control cables work
smoothly before you begin riding in cold
weather. If the control cables are frozen or do
not work smoothly, you could be unable to
control the ATV, which could lead to an acci-
dent or collision.
1. O-ring
1 1
Recommended lubricant:
Engine oil
U1PY60E0.book Page 37 Friday, March 11, 2011 9:30 AM
Page 107 of 132
8-38
8
EBU28702Checking 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
EBU24963Checking 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. Recommended lubricant:
Lithium-soap-based grease
U1PY60E0.book Page 38 Friday, March 11, 2011 9:30 AM
Page 108 of 132
8-39
8
EBU30380Lubricating the lower arm pivots The lower arm pivots must be lubricated at the in-
tervals specified in the periodic maintenance and
lubrication chart.TIPFor parts equipped with a grease nipple, use a
grease gun.
Left side
Right side
Recommended lubricant:
Lithium-soap-based grease1. Grease nipple
1. Grease nipple
111
1
U1PY60E0.book Page 39 Friday, March 11, 2011 9:30 AM
Page 109 of 132
8-40
8
EBU28823Lubricating the front knuckle pivots The front knuckle pivots must be lubricated at the
intervals specified in the periodic maintenance and
lubrication chart.TIPFor parts equipped with a grease nipple, use a
grease gun.
EBU25092Lubricating the steering shaft The steering shaft must be lubricated by a Yamaha
dealer at the intervals specified in the periodic
maintenance and lubrication chart.TIPFor parts equipped with a grease nipple, use a
grease gun.
Recommended lubricant:
Lithium-soap-based grease1. Grease nipple
1
Recommended lubricant:
Lithium-soap-based grease1. Grease nipple
1
U1PY60E0.book Page 40 Friday, March 11, 2011 9:30 AM
Page 110 of 132
8-41
8
EBU25129Battery The battery is located under the seat. (See page
4-10.)
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. Check the electrolyte level in the battery.TIPThe electrolyte should be between the minimum
and maximum level marks.1. Maximum level mark
2. Minimum level mark
1
2
U1PY60E0.book Page 41 Friday, March 11, 2011 9:30 AM