check engine YAMAHA GRIZZLY 350 2015 Owners Manual

EBU17421
TABLE OF CONTENTS
LOCATION OF THE WARNING AND
SPECIFICATION LABELS .............................. 1-1
SAFETY INFORMATION ................................ 2-1
DESCRIPTION................................................ 3-1Left view ...................................................... 3-1
Right view.................................................... 3-1
Controls and instruments............................ 3-2
INSTRUMENT AND CONTROL
FUNCTIONS ................................................... 4-1 Main switch ................................................. 4-1
Indicator lights and warning light ................ 4-2
Speedometer .............................................. 4-3
Handlebar switches .................................... 4-5
Throttle lever ............................................... 4-6
Speed limiter ............................................... 4-7
Front brake lever ......................................... 4-8
Brake pedal and rear brake lever ................ 4-8
Parking brake .............................................. 4-9
Drive select lever ....................................... 4-10
Fuel tank cap............................................. 4-10
Fuel ........................................................... 4-11 Fuel cock .................................................. 4-12
Starter (choke) ......................................... 4-14
Seat .......................................................... 4-14
Storage compartment............................... 4-15
Front carrier .............................................. 4-16
Rear carrier ............................................... 4-16
Adjusting the front shock absorber
assemblies .............................................. 4-17
Adjusting the rear shock absorber assembly ................................................ 4-18
PRE-OPERATION CHECKS .......................... 5-1 Fuel ............................................................. 5-3
Engine oil .................................................... 5-3
Final gear oil ............................................... 5-3
Differential gear oil ...................................... 5-3
Front and rear brakes ................................. 5-3
Throttle lever ............................................... 5-4
Tires ............................................................ 5-4
Chassis fasteners ....................................... 5-6
Instruments, lights and switches ................ 5-6
OPERATION .................................................. 6-1 Starting a cold engine................................. 6-1U1NS63E0.book Page 1 Monday, March 10, 2014 9:05 AM

Starting a warm engine ............................... 6-3
Operating the drive select lever and driving in reverse................................................... 6-3
Engine break-in ........................................... 6-4
Parking ........................................................ 6-5
Parking on a slope ...................................... 6-5
Accessories and loading ............................. 6-6
RIDING YOUR ATV ........................................ 7-1 GETTING TO KNOW YOUR ATV ................ 7-2
RIDE WITH CARE AND GOOD JUDGMENT .............................................. 7-2
BE CAREFUL WHERE YOU RIDE ............... 7-9
TURNING YOUR ATV................................ 7-12
CLIMBING UPHILL ................................... 7-13
RIDING DOWNHILL .................................. 7-16
CROSSING A SLOPE................................ 7-17
CROSSING THROUGH SHALLOW WATER .................................................... 7-18
RIDING OVER ROUGH TERRAIN ............. 7-21
SLIDING AND SKIDDING.......................... 7-21
WHAT TO DO IF... ..................................... 7-22
WHAT TO DO... ......................................... 7-22
PERIODIC MAINTENANCE AND
ADJUSTMENT................................................ 8-1 Owner’s manual and tool kit ....................... 8-2 Periodic maintenance chart for the
emission control system ........................... 8-3
General maintenance and lubrication chart.......................................................... 8-5
Checking the spark plug............................. 8-9
Engine oil and oil filter cartridge ............... 8-11
Final gear oil ............................................. 8-15
Changing the differential gear oil .............. 8-18
Cleaning the air filter element ................... 8-19
Cleaning the spark arrester ...................... 8-22
V-belt cooling duct check hose ................ 8-24
V-belt case drain plug............................... 8-24
Adjusting the carburetor ........................... 8-25
Adjusting the engine idling speed ............ 8-25
Adjusting the throttle lever free play ......... 8-26
Valve clearance......................................... 8-27
Adjusting the drive select lever safety system cable .......................................... 8-27
Brakes....................................................... 8-27
Checking the front brake pads and rear brake shoes ............................................ 8-28
Checking the brake fluid level .................. 8-29
Changing the brake fluid .......................... 8-30
Checking the front brake lever free play... 8-30
Adjusting the brake pedal height, and the brake pedal and rear brake lever free
play ......................................................... 8-31
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2

Never maintain an ATV without proper knowl-
edge. Contact an authorized ATV dealer to in-
form you on basic ATV maintenance. Certain
maintenance can only be carried out by certified
staff.
In the event of an accident 1. If serious injuries are incurred, you may be safer staying next to your vehicle; it may
shield you from oncoming riders. Depending
on your injuries and position in the trail; you
must make a judgment call as to whether you
should move to a position off the trail. If you
have sustained head, neck, or back injuries,
or cannot feel your limbs, you should not
move. Keep your helmet on and remain mo-
tionless. Lie down next to your vehicle and
wait for help.
2. If less serious injuries are incurred and you can walk, then move to a position off the trail.
Check yourself for injuries and apply first aid
as needed.
3. If your injuries are light, when safe to do so, move your vehicle off the trail to avoid colli-
sions with oncoming riders. Check for injuries
and apply first aid as necessary. If you can
physically operate your vehicle, inspect your vehicle. If the vehicle is in safe operating con-
dition and you can safely operate it, restart it
and ride gently back to camp or other known
location where you can receive medical at-
tention. If necessary, contact your riding party
or local authorities to let them know where
you are and what has happened.
In the event of a breakdown 1. If your vehicle will not restart or is not in safe operating condition, turn off the main switch
and engine stop switch. If the breakdown oc-
curs at twilight or night, leave the main switch
on so that your lights may warn other riders of
your stopped vehicle.
2. Get out of danger. Check for oncoming vehi- cles and when safe, push your vehicle to the
side of the trail or even off the main trail to
avoid any possible collisions with oncoming
riders. If you cannot move your vehicle by
yourself, when safe, walk to the nearest van-
tage point and signal an oncoming rider to
help you push your vehicle to a safe place off
the trail.
3. Inspect your vehicle for any immediate haz- ardous conditions. The most obvious hazard-
ous conditions are leaking fuel and
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2-5
2ungrounded or broken wiring. Visually check
for broken wiring and leaking fuel. Leaking
fuel can be confirmed by the odor of gasoline.
4. Once immediate safety hazards are con- firmed not to exist, you may remove your hel-
met to more closely inspect your vehicle.
Check for external signs of wear, broken
parts, fluid leaks, cracks in the frame, sus-
pension damage, wheel damage, and so on.
Fuel, oil, and coolant usually give off a notice-
able odor.
5. If your vehicle will not restart or if it is unsafe to ride, then turn off all vehicle systems (en-
gine stop switch, main switch, and fuel cock),
and then signal or go for help.
Aftermarket Parts, Accessories, and Modifica-
tions
While you may find aftermarket products similar in
design and quality to genuine Yamaha accesso-
ries, recognize that some aftermarket accessories
or modifications are not suitable because of po-
tential safety hazards to you or others. Installing
aftermarket products or having other modifica-
tions performed to your vehicle that change any of
the vehicle’s design or operation characteristics
can put you and others at greater risk of serious injury or death. You are responsible for injuries re-
lated to changes in the vehicle. Keep the following
guidelines in mind, as well as those provided un-
der “Loading” when mounting accessories.

Never install accessories that would impair the
performance of your ATV. Carefully inspect the
accessory before using it to make sure that it
does not in any way reduce ground clearance,
limit suspension travel, steering travel or control
operation.
 Accessories fitted to the ATV can create insta-
bility due to improper weight distribution.
 Bulky or large accessories may seriously affect
the stability of the ATV.
 Certain accessories can displace the operator
from his or her normal riding position. This im-
proper position limits the freedom of movement
of the operator and may limit control ability,
therefore, such accessories are not recom-
mended.
 Use caution when adding electrical accesso-
ries. If electrical accessories exceed the capac-
ity of the ATV’s electrical system, an electric
failure could result, which could cause a dan-
gerous loss of lights or engine power.
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3-1
3
EBU17681
DESCRIPTION
EBU17691Left view
EBU17701Right view
1. Fuel cock
2. Throttle stop screw
3. Air filter case
4. Fuses
5. Battery
6. Tail/brake light
7. Engine oil filler cap
8. Oil filter cartridge
9. V-belt cooling duct check hose
3
4,5
1
26
98 7
1. Rear shock absorber assembly spring preload adjusting
ring
2. Spark arrester
3. Storage compartment and tool kit
4. Spark plug
5. Front shock absorber assembly spring preload adjusting ring
6. Rear brake light switch
7. Brake pedal
8. V-belt case drain plug12 3 4 5
67
8
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4-3
4
EBU26933Oil temperature warning light “ ”
This warning light comes on when the engine
overheats. When this occurs, stop the engine as
soon as it is safe to do so, and allow it to cool.
The electrical circuit of the warning light can be
checked by turning the key to “ON”, with the en-
gine stop switch set to “ ”, and then pushing the
start switch.
If the warning light does not come on while the
start switch is being pushed, or if the warning light
remains on after the start switch is released, have
a Yamaha dealer check the electrical circuit.
If the warning light stays on when the engine is
cool, have a Yamaha dealer check the electrical
circuit.NOTICEECB00011The engine may overheat if the ATV is over-
loaded. In this case, reduce the load to spec-
ification.
 Start the engine after making sure that the
warning light is out. Continuous use while
the warning light is on may cause damage to
the engine.
EBU17953On-Command four-wheel-drive indicator
light “ ”
This indicator light comes on when the On-Com-
mand four-wheel-drive switch is set to the “4WD”
position.TIPDue to the synchronizing mechanism in the differ-
ential gear case, the light may not come on until
the ATV starts moving. EBU18024SpeedometerThis speedometer is equipped with an odometer
and a tripmeter. The tripmeter can be reset to zero
with the reset knob. Use the tripmeter to estimate
how far you can ride on a tank of fuel before going
to reserve. This information will enable you to plan
fuel stops in the future.
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4-7
4Regulate 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 throttle lever is re-
leased.
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.
EBU18324Speed limiterYour ATV is equipped 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 available and the maximum speed of the ATV,
turn the adjusting screw in direction (a). To
decrease the maximum engine power avail-
able and the maximum speed of the ATV, turn
the adjusting screw in direction (b). Do not
turn the adjusting screw out more than 12
mm (0.47 in) or the throttle cable could be
damaged. Always make sure the throttle lever
free play is adjusted to 3.0–5.0 mm (0.12–
0.20 in). (See page 8-26.) WARNING! Im-
proper adjustment of the speed limiter and
throttle could cause throttle cable damage
or improper throttle operation. You could
lose control, resulting in an accident.
[EWB00242]
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5-1
5
EBU19202
PRE-OPERATION CHECKS
EBU19225Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condition. Always
follow the inspection and maintenance procedures and schedules described in the Owner’s Manual.
WARNING
EWB00482Failure to inspect or maintain the vehicle properly increases the possibility of an accident or equip-
ment damage. Do not operate the vehicle if you find any problem. If a problem cannot be corrected
by the procedures provided in this manual, have the vehicle inspected by a Yamaha dealer. Before using this vehicle, check the following points:
ITEMROUTINE PAGE
Fuel • Check fuel level in fuel tank,
and add recommended fuel if neces-
sary.
• Check fuel line for leakage. Correct if necessary. 4-11, 5-3
Engine oil • Check oil level in engine, and add recommended oil to specified
level if necessary.
• Check ATV for oil leakage. Correct if necessary. 5-3, 8-11
Final gear oil • Check ATV for oil leakage. Correct if necessary. 5-3, 8-15
Differential gear oil • Check ATV for oil leakage. Correct if necessary. 5-3, 8-18
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5
EBU19542FuelMake sure that there is sufficient fuel in the tank.
(See page 4-11.)EBU19561Engine oilMake sure that the engine oil is at the specified
level. Add oil as necessary. (See page 8-11.)EBU19591Final gear oilMake sure that the final gear oil is at the specified
level. Add oil as necessary. (See page 8-15.)EBU19601Differential gear oilMake sure that the differential gear oil is at the
specified level. Add oil as necessary. (See page
8-18.)EBU27673Front and rear brakesBrake levers and brake pedal
Check that there is no free play in the front
brake lever. If there is free play, have a Yamaha
dealer check the brake system. 
Check for correct free play in the rear brake le-
ver and brake pedal. If the free play is incorrect,
adjust it. (See page 8-31.)
 Check operation of the levers and pedal. They
should move smoothly and there should be a
firm feeling when the brake is applied. If not,
have a Yamaha dealer check them.
Brake fluid level (front brake)
Check the brake fluid level. Add fluid if necessary.
(See page 8-29.)
Brake fluid leakage (front brake)
Check to see if any brake fluid is leaking out of the
hose, joint or brake fluid reservoir of the front
brake. Apply the brake firmly for one minute. If the
lever moves slowly inward, there may be a leak in
the brake system. If there is any leakage, the brake
system should be checked by a Yamaha dealer.
Brake operation
Test the brakes at slow speed after starting out to
make sure they are working properly. If the brakes
do not provide proper braking performance, Specified brake fluid:
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6
EBU19882
OPERATION
EBU19902Read the Owner’s Manual carefully before riding
the ATV. If there is a control or function you do not
understand, ask your Yamaha dealer.
WARNING
EWB00632Read the Owner’s Manual carefully to become
familiar with all controls in order to help pre-
vent any loss of control, which could cause an
accident or injury. EBU26954Starting a cold engineNOTICEECB00151See the “Engine break-in” section on page 6-4
prior to operating the engine for the first time. 1. Set the parking brake.
2. Turn the fuel cock to “ON”.
3. Turn the key to “ON” and the engine stopswitch to “ ”. 4. Shift the drive select lever into the neutral po-
sition. The neutral indicator light should come
on. If the indicator light does not come on,
have a Yamaha dealer check the electrical
circuit.
TIPThe engine can be started under the following
conditions:
The drive select lever is in the neutral position.
 The rear brake lever is applied with the drive se-
lect lever in any position. However, it is recom-
mended to shift into the neutral position before
starting the engine. 5. Use the starter (choke) in reference to the fi-
gure:
Position (1):
Cold engine start with ambient temperature
below 5 °C (40 °F).
Position (2):
Cold engine start with ambient temperature
between 0 °C (30 °F) and 30 °C (90 °F).
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