engine YAMAHA GRIZZLY 350 2008 User Guide

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EBU28061Light switch“//”
Set the switch to“” to turn on the high beam.
Set this switch to“” to turn on the low beam.
Set the switch to“” to turn off the headlight.CAUTION:ECB00030Do not use the headlight with the engine turned
off for an extended period of time, otherwise
the battery may discharge to the point that the
starter motor will not operate properly. If this
should happen, remove the battery and re-charge it.EBU27990Turn signal switch“/”
To signal a right-hand turn, push this switch
to“”. To signal a left-hand turn, push this switch
to“”. When released, the switch returns to the
center position. To cancel the turn signal lights,
push the switch in after it has returned to the center
position.EBU18170Horn switch“”
Press the switch to sound the horn.
EBU28000Hazard switch“”
With the key in the “ON” position, turn this switch
to“” to turn on the hazard lights (simultaneous
flashing of all turn signal lights).
The hazard lights are used in case of an emergen-
cy or to warn other drivers when your vehicle is
stopped where it might be a traffic hazard.CAUTION:ECB00860Do not use the hazard lights for an extended
length of time with the engine not running, oth-erwise the battery may discharge.EBU28431On-Command four-wheel-drive switch
“2WD”/“4WD” (4WD model)
This ATV is equipped with a switch to change from
two-wheel drive to four-wheel drive and vice versa.
Select the appropriate drive according to the ter-
rain and the conditions.
“2WD” (two-wheel drive): Power is supplied to
the rear wheels.
“4WD” (four-wheel drive): Power is supplied to
the rear and front wheels.

4-6
4 To change from two-wheel drive to four-wheel
drive, stop the ATV and push the switch in to the
“4WD” position. The four-wheel-drive indicator
light“” comes on.
To change from four-wheel drive to two-wheel
drive, stop the ATV and push the switch in to the
“2WD” position.
WARNING
EWB00163Always stop the ATV before changing from
two-wheel drive to four-wheel drive and vice
versa. The ATV handles differently in two-
wheel drive than in four-wheel drive in somecircumstances. Changing from two-wheel
drive to four-wheel drive or vice versa while
moving may cause the ATV to unexpectedly
handle differently. This could distract the oper-
ator and increase the risk of losing control and
of causing an accident.EBU18280Throttle lever Once the engine is running, movement of the throt-
tle lever will increase the engine speed.
Regulate the speed of the ATV by varying the
throttle position. Because the throttle is spring-
loaded, the ATV will decelerate, and the engine will
return to an idle any time the hand is removed from
the throttle lever.
1. On-Command four-wheel-drive switch “2WD”/“4WD”
(4WD model)

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Before starting the engine, check the throttle to be
sure it is operating smoothly. Make sure it returns
to the idle position as soon as the lever is released.
WARNING
EWB00250Malfunction of the throttle could make it diffi-
cult to speed up or slow down when you need
to. This could cause an accident. Check the op-
eration of the throttle lever before you start the
engine. If the throttle does not work smoothly,
check for the cause. Correct the problem be-fore riding the ATV or consult a Yamaha dealer.
EBU18321Speed limiter Your ATV was delivered with an adjustable speed
limiter. The speed limiter keeps the throttle from
fully opening, even when the throttle lever is
pushed to the maximum.
1. Loosen the locknut.
2. To increase the maximum engine power avail-
able and the maximum speed of the ATV, turn
the adjusting screw in direction (a). To de-
crease the maximum engine power available
and the maximum speed of the ATV, turn the
adjusting screw in direction (b).
1. Throttle lever
1. Locknut
2. Adjusting screw
3. No more than 12 mm (0.47 in)

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EBUM0030Brake pedal The brake pedal is located on the right side of the
ATV.
This model is equipped with a unified brake sys-
tem.
When pressing down on the brake pedal, the brak-
ing force is applied to the rear brake and a portion
of the front brakes. For full braking performance,
apply both the front brake lever and the brake ped-
al simultaneously.
EBU18460Parking brake Use the parking brake before starting the engine or
parking the ATV, especially on a slope. Apply the
rear brake lever and push down the lock plate to
apply the parking brake. Squeeze the rear brake
lever to release the parking brake.
1. Rear brake lever
1. Brake pedal

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WARNING
EWB00220
Always set the parking brake before starting
the engine. The ATV could start moving un-
expectedly if the parking brake is not ap-
plied. This could cause loss of control or a
collision.
Always be sure you have released the park-
ing brake before you begin to ride. The brake
could overheat if you ride the ATV without re-
leasing the parking brake. You could lose
braking performance which could cause an
accident. You could also wear out the brakesprematurely.
EBU18581Drive select lever The drive select lever is used to shift your ATV into
the forward, neutral and reverse positions. See the
“Operating the drive select lever and driving in re-
verse” section on page 6-3 for the drive select lever
operation.EBU18670Recoil starter Firmly grasp the handle and pull slightly until en-
gagement can be felt. Then pull forcefully, being
careful not to pull the rope all the way out.
1. Parking brake lock plate
1. Drive select lever

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WARNING
EWB00340Shift the drive select lever into the neutral po-
sition and apply the parking brake before start-
ing the engine, otherwise the ATV could start
to move unexpectedly, which could cause anaccident.EBU18720Fuel tank cap Remove the fuel tank cap by turning it counter-
clockwise.
EBU18752Fuel Make sure that there is sufficient fuel in the tank.
Fill the fuel tank to the bottom of the filler tube as
shown.
1. Recoil starter
1. Fuel tank cap

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NOTE:If knocking or pinging occurs, use a different brandof gasoline or higher octane grade.CAUTION:ECB00070Use only unleaded gasoline. The use of leaded
gasoline will cause severe damage to internal
engine parts, such as the valves and pistonrings, as well as to the exhaust system.
WARNING
EWB00310
Do not overfill the fuel tank. Fuel expands
when it heats up. If the fuel tank is overfilled,
fuel could spill out due to heat from the en-
gine or the sun.
Be careful not to spill fuel, especially on the
engine or exhaust pipe which can cause a
fire and severe injury. Wipe up any spilled
fuel immediately.
Do not refuel right after the engine has been
running and is still very hot.
Be sure the fuel tank cap is closed securely.
1. Fuel level
2. Fuel tank filler tubeRecommended fuel:
UNLEADED GASOLINE ONLY
For Europe: Regular unleaded gasoline only
with a research octane number of 91 or high-
er
Fuel tank capacity:
13.5 L (3.57 US gal) (2.97 Imp.gal)
Fuel reserve amount:
3.3 L (0.87 US gal) (0.73 Imp.gal)

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EBU18820Fuel cock The fuel cock supplies fuel from the tank to the car-
buretor while also filtering it.
The fuel cock lever positions are explained as fol-
lows and shown in the illustrations.
OFF
With the fuel cock lever in this position, fuel will not
flow. Always turn the fuel cock lever to this position
when the engine is not running.ON
With the fuel cock lever in this position, fuel flows
to the carburetor. Turn the fuel cock lever to this
position when starting the engine and riding.1. Arrow mark pointing to “OFF”
1. Arrow mark pointing to “ON”

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4 RES
This indicates reserve. With the fuel cock lever in
this position, the fuel reserve is made available.
Turn the fuel cock lever to this position if you run
out of fuel while riding. When this occurs, refuel as
soon as possible and be sure to turn the fuel cock
lever back to “ON”!
EBU18850Starter (choke)“” Starting a cold engine requires a richer air-fuel mix-
ture, which is supplied by the starter (choke).
Move the starter (choke) in direction (a) to turn on
the starter (choke).Move the starter (choke) in direction (b) to turn off
the starter (choke).
See the “Starting a cold engine” section on page
6-1 for proper operation.1. Arrow mark pointing to “RES”
1. Starter (choke)“”

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EBUM0150Catalytic converter This model is equipped with a catalytic converter in
the exhaust system.
WARNING
EWBM0010The exhaust system is hot after operation.
Make sure that the exhaust system has cooleddown before doing any maintenance work.CAUTION:ECBM0010The following precautions must be observed to
prevent a fire hazard or other damages.
Use only unleaded gasoline. The use of lead-
ed gasoline will cause unrepairable damage
to the catalytic converter.
Never park the vehicle near possible fire haz-
ards such as grass or other materials that
easily burn.
Do not allow the engine to idle too long.
1. Special wrenchSpring preload setting:
Minimum (soft):
1
Standard:
2
Maximum (hard):
5