lock YAMAHA GRIZZLY 350 2010 User Guide

8-21
8 4. Pull the air filter element out of the air filter
case.5. Pull off the air filter element lock plate, and
then remove the sponge material from the air
filter element frame.
1. Air filter case cover holder
2. Air filter case cover
1. Air filter element
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8-22
86. 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]
7. Squeeze the excess solvent out of the sponge
material and let it dry. NOTICE: Do not twist
the sponge material when squeezing it.
[ECB00441]
8. Check the sponge material and replace it if
damaged.
9. Apply Yamaha foam air filter oil or other qual-
ity foam air filter oil to the sponge material.TIPThe sponge material should be wet but not drip-
ping.10. Pull the sponge material over the air filter ele-
ment frame, and then install the lock plate.
11. Insert the air filter element into the air filter
case, and then install the air filter case cover
by hooking the holders onto the air filter case.
NOTICE: Make sure that the air filter ele-
ment is properly seated in the air filter
1. Air filter element frame
2. Sponge material
3. Air filter element lock plateU1AB60E0.book Page 22 Wednesday, April 29, 2009 10:19 AM

8-27
8
EBU24045Adjusting the throttle cable free play The throttle cable free play should be checked
and, if necessary, adjusted at the intervals speci-
fied in the periodic maintenance and lubrication
chart.
The throttle cable free play should measure 3.0–
5.0 mm (0.12–0.20 in) at the throttle lever. Period-
ically check the throttle cable free play and, if nec-
essary, adjust it as follows.TIPThe engine idling speed must be checked, and ad-
justed if necessary, before adjusting the throttle ca-
ble free play.1. Slide the rubber cover back.
2. Loosen the locknut.
3. To increase the throttle cable free play, turn
the throttle cable free play adjusting bolt in di-
rection (a). To decrease the throttle cable 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. Throttle cable free play
2. Rubber cover
3. Locknut
4. Throttle cable free play adjusting bolt2
43
1
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8-30
8

Use only the recommended quality brake fluid,
otherwise the rubber seals may deteriorate,
causing leakage and poor braking performance.
Refill with the same type of brake fluid. Mixing
fluids may result in a harmful chemical reaction
and lead to poor braking performance.
Be careful that water does not enter the brake
fluid reservoir when refilling. Water will signifi-
cantly lower the boiling point of the fluid and may
result in vapor lock.
Brake fluid may deteriorate painted surfaces or
plastic parts. Always clean up spilled fluid imme-
diately.
As the brake pads wear, it is normal for the brake
fluid level to gradually go down. However, if the
brake fluid level goes down suddenly, have a
Yamaha dealer check the cause.EBU24281Changing the brake fluid Have a Yamaha dealer change the brake fluid at
the intervals specified in the TIP after the periodic
maintenance and lubrication chart. In addition,have the oil seals of the brake master cylinder and
calipers as well as the brake hoses replaced at the
intervals listed below or whenever they are dam-
aged or leaking.

Oil seals: Replace every two years.
Brake hoses: Replace every four years.EBU24394Checking the front brake lever free play The brake lever free play must be checked at the
intervals specified in the periodic maintenance and
lubrication chart. The brake lever should have no
free play as shown. If there is free play, have a
Yamaha dealer check the brake system. Recommended brake fluid:
DOT 41. No free play
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8-32
8Adjusting the brake lever free play
The brake lever free play should measure 3.0–5.0
mm (0.12–0.20 in) as shown. If the free play is in-
correct, adjust it as follows.1. Loosen the locknut at the brake lever and fully
turn in the brake lever free play adjusting bolt.
2. Turn the brake lever free play adjusting nut on
the brake cable at the rear wheel hub so that
gap “A” measures 0–1 mm (0–0.04 in).
1. Brake pedal free play adjusting nut
2. Brake lever free play adjusting nut
1. Brake lever free play
2. Locknut
3. Brake lever free play adjusting bolt
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8-33
8 3. Turn the brake lever free play adjusting bolt at
the brake lever in direction (a) to increase the
free play, and in direction (b) to decrease it.4. Tighten the locknut at the brake lever.
TIPWhen adjusting the rear brake lever free play:
Be sure not to step on the brake pedal.
Make sure the brake pedal does not move.Checking the brake pedal position
The top of the brake pedal should be positioned
72.0–82.0 mm (2.83–3.23 in) above the footboard
bracket. If the brake pedal position is incorrect,
have a Yamaha dealer adjust it.
1. Brake lever free play adjusting nut
2. Gap “A”
1. Locknut
2. Brake lever free play adjusting bolt
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8-42
8
EBU25481Replacing 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.3. Remove the headlight bulb holder by pushing
it in and turning it counterclockwise.1. Cover at the rear of the headlight
1. Headlight bulb holder cover
1. Headlight bulb holder
U1AB60E0.book Page 42 Wednesday, April 29, 2009 10:19 AM

8-43
8 4. Remove the burnt-out bulb by pulling it out.
5. Insert a new headlight bulb into the bulb hold-
er by pushing it in. NOTICE: Do not touch
the glass part of the headlight bulb to keep
it free from oil, otherwise the transparency
of the glass, the luminosity of the bulb, and
the bulb life will be adversely affected.
Thoroughly clean off any dirt and finger-
prints on the headlight bulb using a cloth
moistened with alcohol or thinner.
[ECB00651]
6. Install the bulb holder by pushing it in and turn-
ing it clockwise.7. Install the bulb holder cover and the cover at
the rear of the headlight. NOTICE: Make sure
the headlight bulb holder cover is securely
fitted over the bulb holder and seated
properly.
[ECB00671]
8. Adjust the headlight beam if necessary.EBU25551Adjusting a headlight beam NOTICEECB00690It is advisable to have a Yamaha dealer make
this adjustment.To raise a headlight beam, turn the headlight beam
adjusting screw in direction (a).
To lower a headlight beam, turn the adjusting
screw in direction (b).
1. Do not touch the glass part of the bulb.U1AB60E0.book Page 43 Wednesday, April 29, 2009 10:19 AM

9-1
9
EBU25860
CLEANING AND STORAGE
EBU25881Cleaning Frequent, thorough cleaning of your ATV will not
only enhance its appearance but will improve its
general performance and extend the useful life of
many components.
1. Before cleaning the ATV:
a. Block off the end of the exhaust pipe to
prevent water entry. A plastic bag and
strong rubber band may be used.
b. Make sure the spark plug and all filler caps
are properly installed.
2. If the engine case is excessively greasy, apply
degreaser with a paint brush. Do not apply de-
greaser to the wheel axles.
3. Rinse the dirt and degreaser off with a garden
hose. Use only enough pressure to do the job.
WARNING! Wet brakes may have reduced
stopping ability, increasing the chance of
an accident. Test the brakes after washing.
Apply the brakes several times at slow
speeds to let friction dry out the linings.
[EWB02311]
NOTICE: Excessive water pressure
may cause water seepage and deteriora-tion of wheel bearings, brakes, transmis-
sion seals and electrical devices. Many
expensive repair bills have resulted from
improper high-pressure detergent applica-
tions such as those available in coin-oper-
ated car washers.
[ECB00711]
4. Once most of the dirt has been hosed off,
wash all surfaces with warm water and mild,
detergent-type soap. An old toothbrush or bot-
tle brush is handy for hard-to-reach places.
5. Rinse the ATV off immediately with clean wa-
ter and dry all surfaces with a chamois, clean
towel or soft absorbing cloth.
6. Clean the seat with a vinyl upholstery cleaner
to keep the cover pliable and glossy.
7. Automotive type wax may be applied to all
painted and chrome plated surfaces. Avoid
combination cleaner-waxes. Many contain
abrasives which may mar the paint or protec-
tive finish. When finished cleaning, start the
engine and let it idle for several minutes.
U1AB60E0.book Page 1 Wednesday, April 29, 2009 10:19 AM

9-2
9
EBU25933Storage Short-term
Always store your ATV in a cool, dry place and, if
necessary, protect it against dust with a porous
cover. NOTICE: Storing the ATV in a poorly ven-
tilated room or covering it with a tarp while it is
still wet, will allow water and humidity to seep
in and cause rust. To prevent corrosion, avoid
damp cellars, stables (because of the presence
of ammonia) and areas where strong chemi-
cals are stored.
[ECB00721]
Long-term
Before storing your ATV for several months:
1. Follow all the instructions in the “Cleaning”
section of this chapter.
2. Turn the fuel cock lever to “OFF”.
3. Drain the carburetor float chamber by loosen-
ing the drain bolt; this will prevent fuel deposits
from building up. Pour the drained fuel into the
fuel tank.
4. Fill up the fuel tank and add fuel stabilizer (if
available) to prevent the fuel from deteriorat-
ing.5. Perform the following steps to protect the cyl-
inder, piston rings, etc. from corrosion.
a. Remove the spark plug cap and spark
plug.
b. Pour a teaspoonful of engine oil into the
spark plug bore.
c. Install the spark plug cap onto the spark
plug, and then place the spark plug on the
cylinder head so that the electrodes are
grounded. (This will limit sparking during
the next step.)
d. Turn the engine over several times with the
starter. (This will coat the cylinder wall with
oil.)
e. Remove the spark plug cap from the spark
plug, and then install the spark plug and
the spark plug cap.
6. Lubricate all control cables and the pivoting
points of all levers and pedals.
7. Check and, if necessary, correct the tire air
pressure, and then block up the ATV so that
all of its wheels are off the ground. Alternative- Specified amount:
7.5 ml of stabilizer to each liter of fuel (or 1 oz
of stabilizer to each gallon of fuel)U1AB60E0.book Page 2 Wednesday, April 29, 2009 10:19 AM