YAMAHA GRIZZLY 125 2013 Owners Manual

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8
13. Install the air filter element into the air filter
case. NOTICE: Make sure that the air filter
element is properly seated in the air filter
case. Never operate the engine with the air
filter element removed. This will allow un-
filtered air to enter the engine, causing rap-
id engine wear and possible engine
damage. Additionally, operation without
the air filter element will affect carburetor
jetting with subsequent poor performance
and possible engine overheating.
[ECB00461]
14. Connect the air filter case cover to the air filter joint. 15. Install the air filter case cover by installing the
screws, and then tighten the air filter joint
screw.
16. Install the breather hose.
17. Install the seat.
TIPThe air filter element should be cleaned every 20–
40 hours. It should be cleaned and lubricated more
often if the ATV is operated in extremely dusty ar-
eas. Each time the air filter element maintenance
is performed, check the air inlet of the air filter case
for obstructions. Check the air filter case rubber
joint to the carburetor fittings and the rubber joint
manifold fittings for an air-tight seal. Tighten all fit-
tings securely to avoid the possibility of unfiltered
air entering the engine.V-belt case air filter element 1. Place the ATV on a level surface.
2. Remove the front carrier by removing the bolts.
1. Washer
1
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83. Remove the panel by removing the quick fas-
teners, and then pulling it upward as shown. 4. Disconnect the coupler shown.
1. Front carrier bolt
2. Front carrier
2
1 1
1
1. Panel
2. Quick fastener
1. Coupler
12
2
1
1
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8
5. Remove the air filter case cover by removing
the screw.
6. Remove the air filter element. 7. 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.
1. Air filter case cover
2. Screw
1 2
1. Air filter element
1
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88. Check the air filter element and replace it if
damaged.
9. Install the air filter element into the air filter case.
10. Install the air filter case cover by installing 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.
EBU27632Cleaning the spark arrester Be sure the exhaust pipe and muffler are cool be-
fore cleaning the spark arrester.1. Remove the tailpipe screws and their gasket.
2. Remove the tailpipe by pulling it out of the muffler.
3. Tap the tailpipe lightly, and then use a wire brush to remove any carbon deposits from the
spark arrester portion of the tailpipe and inside
of the tailpipe housing.
1. Air filter elementTightening torque:Front carrier bolt:7 Nm (0.7 m·kgf, 5.1 ft·lbf)
1
1. Tailpipe screw
1
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8
4. Insert the tailpipe into the muffler and align the
screw holes.
5. Check the gaskets for damage, and replace them if necessary.
6. Install the screws and their gasket, and then tighten the screws to the specified torque.
WARNING
EWB02340Do not start the engine when cleaning the
spark arrester, otherwise it could cause injury
to the eyes, burns, carbon monoxide poison-
ing, possibly leading to death, and start a fire.
Always let the exhaust system cool prior to
touching exhaust components.EBU30061V-belt case drain screw After riding in water deep enough to allow it to en-
ter the V-belt case, remove this screw to drain the
water from the case.TIPIf water drains from the V-belt case after removing
the screw, have a Yamaha dealer check the ATV
as the water may affect other engine parts.
1. Tailpipe screw
2. Gasket
3. Tailpipe
4. Spark arresterTightening torque:Tailpipe screw:7 Nm (0.7 m·kgf, 5.1 ft·lbf)
3
4 21
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8To drain the water from the V-belt case
1. Place the ATV on a level surface.
2. Place a container under the V-belt case, and then remove the V-belt case drain screw and
its gasket to drain the water from the V-belt
case.
3. Install the V-belt case drain screw and its new gasket, and then tighten the screw to the
specified torque.
EBU23940Adjusting the carburetor The carburetor should be checked and, if neces-
sary, adjusted at the intervals specified in the peri-
odic maintenance and lubrication chart. The
carburetor is an important part of the engine and
requires very sophisticated adjustment. Therefore,
most carburetor adjustments should be left to a
Yamaha dealer, who has the necessary profes- sional knowledge and experience. The adjustment
described in the following section, however, may
be performed by the owner as part of routine main-
tenance.NOTICEECB00480The carburetor has been set and extensively
tested at the Yamaha factory. Changing these
settings without sufficient technical knowl-
edge may result in poor performance of or
damage to the engine.
1. V-belt case drain screw
2. Gasket
12
Tightening torque: V-belt case drain screw:7 Nm (0.7 m·kgf, 5.1 ft·lbf)
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8
EBU24000Adjusting the engine idling speed The engine idling speed must be checked and, if
necessary, adjusted as follows at the intervals
specified in the periodic maintenance and lubrica-
tion chart.TIPA diagnostic tachometer is needed to make this
adjustment.1. Start the engine and warm it up.TIPThe engine is warm when it quickly responds to the
throttle.2. Attach the tachometer to the spark plug lead.
3. Check the engine idling speed and, if neces-sary, adjust it to specification by turning the
throttle stop screw at the carburetor. To in-
crease the engine idling speed, turn the throt-
tle stop screw in direction (a), and to decrease
it, turn the screw in direction (b).
TIPIf the specified idling speed cannot be obtained as
described above, have a Yamaha dealer make the
adjustment.EBU24047Adjusting the throttle lever free play The throttle lever free play should be checked and,
if necessary, adjusted at the intervals specified in
the periodic maintenance and lubrication chart.1. Throttle stop screwEngine idling speed:1650–1750 r/min
(a) (b)
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8The throttle lever free play should measure 1.0–
3.0 mm (0.04–0.12 in) as shown. Periodically
check the throttle lever free play and, if necessary,
adjust it as follows.
TIPThe engine idling speed must be checked, and ad-
justed if necessary, before adjusting the throttle le-
ver free play.1. Slide the rubber cover back.
2. Loosen the locknut.
3. To increase the throttle lever free play, turn
the throttle lever free play adjusting bolt in di-
rection (a). To decrease the throttle lever free
play, turn the adjusting bolt in direction (b). 4. Tighten the locknut.
5. Slide the rubber cover to its original position.
EBU24060Valve clearance The valve clearance changes with use, resulting in
improper air-fuel mixture and/or engine noise. To
prevent this from occurring, the valve clearance
must be adjusted by a Yamaha dealer at the inter-
vals specified in the periodic maintenance and lu-
brication chart.1. Rubber cover
2. Throttle lever free play adjusting bolt
3. Locknut
4. Throttle lever free play
4
3
2
1
(a)
(b)
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EBU29601Brakes Replacement of brake components requires pro-
fessional knowledge. Brake service should be per-
formed by a Yamaha dealer.
WARNING
EWB02571Operating with improperly serviced or adjust-
ed brakes could lead to a loss in braking ability
and an accident.EBU24090Checking the front and rear brake
shoes The front and rear brake shoes must be checked
for wear at the intervals specified in the periodic
maintenance and lubrication chart. Each brake is
provided with a wear indicator, which allows you to
check the brake shoe wear without having to dis-
assemble the brake. To check the brake shoe
wear, check the position of the wear indicator while
applying the brake. If a brake shoe has worn to the
point that the wear indicator reaches the wear limit
line or mark, have a Yamaha dealer replace the
brake shoes as a set.Front brake
1. Wear limit line
2. Wear indicator
1
2
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8Rear brake
EBU24374Adjusting the front
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 front 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. Remove the front carrier by removing the bolts.
1. Wear limit line
2. Wear indicator
1
2
1. Brake lever free play
1
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