2010 YAMAHA GRIZZLY 125 Owners Manual

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8. Refill with the specified amount of the recom-
mended engine oil, and then install and tight-
en the engine oil filler cap.
TIP

Be sure to wipe off spilled oil on any parts after the
engine and exhaust system have cooled down.
NOTICE

ECB00330

Do not use oils with a diesel specification of
“CD” or oils of a higher quality than speci-
fied. In addition, do not use oils labeled “EN-
ERGY CONSERVING II” or higher.

Make sure that no foreign material enters the
crankcase.
9. Start the engine, and then let it idle for several
minutes while checking it for oil leakage. If oil
is leaking, immediately turn the engine off and
check for the cause.
10. Turn the engine off, wait at least ten minutes,
and then check the oil level and correct it if
necessary.
EBU27025
Transmission oil
The transmission oil level should be checked be-
fore each ride. In addition, the transmission oil
must be changed at the intervals specified in the
periodic maintenance and lubrication chart.
To check the transmission oil level
1. Place the ATV on a level surface.
2. Start the engine, warm it up for several min-
utes, and then turn it off.
3. Wait a few minutes until the oil settles, and
then loosen the transmission oil check screw
located at the right side of the crankcase until
oil flows out. Tightening torque:
Engine oil drain bolt:
32 Nm (3.2 m·kgf, 23.1 ft·lbf)
Recommended oil:
See page 10-1.
Oil quantity:
1.25 L (1.32 US qt, 1.10 Imp.qt)

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4. If no oil flows out, remove the oil filler bolt.5. Pour the recommended type of oil in the trans-
mission oil filler hole until it flows out of the
check screw hole.
6. Install the transmission oil check screw and
transmission oil filler bolt, and then tighten
them to the specified torques.
1. Transmission oil check screw
2. Transmission oil level check hole
3. Correct oil level
1 32

1. Transmission oil filler bolt
Tightening torque:
Transmission oil check screw:
16 Nm (1.6 m·kgf, 11.6 ft·lbf)
Transmission oil filler bolt:
23 Nm (2.3 m·kgf, 16.6 ft·lbf)
1

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To change the transmission oil
1. Place the ATV on a level surface.
2. Start the engine, warm it up for several min-
utes, and then turn it off.
3. Place an oil pan under the transmission to col-
lect the used oil.
4. Remove the transmission oil filler bolt and the
transmission oil drain bolt to drain the oil from
the transmission case.
5. Install the drain bolt, and then tighten it to the
specified torque.6. Refill with the specified amount of the recom-
mended transmission oil, and then install and
tighten the oil filler bolt.
NOTICE:
Make sure
that no foreign material enters the trans-
mission case.

[ECB00791]
NOTICE

ECB01061
Make sure that no oil gets on the tires or
wheels.
7. Start the engine, and then let it idle for several
minutes while checking the transmission for
1. Transmission oil drain bolt
1

Tightening torque:
Transmission oil drain bolt:
23 Nm (2.3 m·kgf, 16.6 ft·lbf)
Recommended transmission oil:
See page 10-1.
Oil quantity:
0.6 L (0.63 US qt, 0.53 Imp.qt)
Tightening torque:
Transmission oil filler bolt:
23 Nm (2.3 m·kgf, 16.6 ft·lbf)

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oil leakage. If oil is leaking, immediately turn
off the engine and check for the cause.
8. Turn the engine off, and then check the oil lev-
el and correct it if necessary.
EBU23843
Cleaning the engine and V-belt case air
filter elements
Both air filter elements should be cleaned at the
specified intervals in the periodic maintenance
chart.
Engine air filter element
TIP

There is a check hose at the bottom of the air filter
case. If dust or water collects in this hose, empty
the hose and clean the air filter element and air fil-
ter case.1. Place the ATV on a level surface.
2. Remove the seat. (See page 4-10.)
3. Remove the breather hose, and then loosen
the clamp screw.
1. Check hose
1

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4. Remove the air filter case cover by removing
the screws.5. Pull the air filter element out of the air filter
case.
6. Remove the bolt and washer shown, and then
pull the sponge material off from the air filter
element frame.
1. Breather hose
2. Clamp screw
1
2

1. Air filter case cover
2. Screw
1 22
2
2

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7. Wash the sponge material gently but thor-
oughly in solvent.
WARNING! Always use
parts cleaning solvent to clean the sponge
material. Never use low-flash-point sol-
vents or gasoline to clean the sponge ma-
terial because the engine could catch fire
or explode.
[EWB01941]

8. Squeeze the excess solvent out of the sponge
material and let it dry.
NOTICE:
Do not twist
the sponge material when squeezingit.
[ECB00441]

9. Check the sponge material and replace it if
damaged.
10. Apply Yamaha foam air filter oil or other qual-
ity foam air filter oil to the sponge material.
TIP

The sponge material should be wet but not drip-
ping.
11. Pull the sponge material over the air filter ele-
ment frame.
12. Install the washer and bolt.
NOTICE:
Be sure
to install the washer with the bent edge
facing outward as shown.
[ECB00452]

1. Bolt
2. Washer
3. Sponge material
4. Air filter element frame
3 4
21

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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. Install the air filter case cover by installing the
screws.15. Install the breather hose and then tighten the
clamp screw.
16. Install the seat.TIP

The 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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3. Remove the panel shown by removing the
quick fasteners.4. Disconnect the coupler shown.
1. Bolt
2. Front carrier
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1

1. Panel
2. Quick fastener122
1