2008 YAMAHA GRIZZLY 350 checking oil

Measuring the tire pressure ....................... 5-5
Tire wear limit ............................................. 5-6
Chassis fasteners ....................................... 5-7
Instruments, lights and switches ................ 5-7
OPERATION .................................................. 6-1
Starting a cold engine ................................ 6-1
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
JUDGEMENT ............................................ 7-2
BE CAREFUL WHERE YOU RIDE ............. 7-9
TURNING YOUR ATV .............................. 7-13
CLIMBING UPHILL ................................... 7-14
RIDING DOWNHILL.................................. 7-17
CROSSING A SLOPE............................... 7-18
CROSSING THROUGH SHALLOW
WATER ................................................... 7-19
RIDING OVER ROUGH TERRAIN ........... 7-22SLIDING AND SKIDDING .........................7-22
WHAT TO DO IF........................................7-24
WHAT TO DO... .........................................7-24
PERIODIC MAINTENANCE AND MINOR
REPAIR ..........................................................8-1
Owner’s manual and tool kit .......................8-1
Periodic maintenance chart for
the emission control system .....................8-3
General maintenance and lubrication
chart ..........................................................8-5
Removing and installing the panel ..............8-9
Checking the spark plug .............................8-9
Engine oil and oil filter cartridge ................8-11
Final gear oil .............................................8-15
Changing the differential gear oil
(4WD model)............................................8-18
Cleaning the air filter element ...................8-20
V-belt cooling duct check hose .................8-23
V-belt case drain plug ...............................8-23
Adjusting the carburetor ............................8-23
Adjusting the engine idling speed .............8-24
Adjusting the throttle cable free play .........8-25
Valve clearance ........................................8-25
Adjusting the drive select lever safety
system cable ...........................................8-26

8-12
82. Check the engine oil level on a cold engine.
NOTE:If the engine was started before checking the oil
level, be sure to warm up the engine sufficiently,
and then wait at least ten minutes until the oil set-tles for an accurate reading.
3. Remove the engine oil filler cap, and then
wipe the dipstick off with a clean rag.
4. Insert the dipstick into the filler hole (without
screwing it in), and then remove it again to
check the oil level.
NOTE:The engine oil should be between the minimumand maximum level marks.
5. If the engine oil is at or below the minimum
level mark, add sufficient oil of the recom-
mended type to raise it to the correct level.
6. Insert the dipstick into the oil filler hole, and
then tighten the engine oil filler cap.
1. Engine oil filler cap
1. Dipstick
2. Maximum level mark
3. Minimum level mark

8-15
8
NOTE:Be sure to wipe off spilled oil on any parts after theengine and exhaust system have cooled down.CAUTION:ECB00300
In order to prevent clutch slippage (since the
engine oil also lubricates the clutch), do not
mix any chemical additives. Do not use oils
with a diesel specification of “CD” or oils of
a higher quality than specified. In addition,
do not use oils labeled “ENERGY CONSERV-
ING II” or higher.
Make sure that no foreign material enters thecrankcase.10. 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.
11. Turn the engine off, wait at least ten minutes,
and then check the oil level and correct it if
necessary.
EBU23383Final gear oil The final gear case must be checked for oil leak-
age before each ride. If any leakage is found, have
a Yamaha dealer check and repair the ATV. In ad-
dition, the final gear oil level must be checked and
the oil changed as follows at the intervals specified
in the periodic maintenance and lubrication chart.
To check the final gear oil level
1. Place the ATV on a level surface.NOTE:The final gear oil level must be checked on a coldengine.
2. Remove the final gear oil filler bolt, and then
check the oil level in the final gear case. Recommended oil:
See page 10-1.
Oil quantity:
Without oil filter cartridge replacement:
2.20 L (2.33 US qt) (1.94 Imp.qt)
With oil filter cartridge replacement:
2.30 L (2.43 US qt) (2.02 Imp.qt)

8-28
8Rear brake
Observe these precautions:

When checking the fluid level, make sure that
the top of the brake fluid reservoir is level.
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.EBUM0120Changing the brake fluid Have a Yamaha dealer change the brake fluid at
the intervals specified in the NOTE after the peri-
odic maintenance and lubrication chart. In addi-
tion, have the oil seals of the front brake master
cylinder, equalizer master cylinder and calipers as
well as the brake hoses replaced at the intervals
listed below or whenever they are damaged or
leaking.
Oil seals: Replace every two years.
Brake hoses: Replace every four years.
Brake equalizer piston seals and o-ring: Replace
every two years.
1. Minimum level mark
2. Maximum level markRecommended brake fluid:
DOT 4

8-32
83. Install the panel.
EBU24900Checking and lubricating the cables The operation and the condition of all control ca-
bles should be checked before each ride, and the
cables and cable ends should be lubricated if nec-
essary. If a cable is damaged or does not move
smoothly, have a Yamaha dealer check or replace
it.
WARNING
EWB02130Inspect cables frequently and replace if dam-
aged. Corrosion can result when the cable
sheaths become damaged, and cables can
also become frayed or kinked, which could re-
strict the operation of controls and lead to anaccident or injury.EBU28711Checking and lubricating the front and
rear brake levers The operation of the front and rear brake levers
should be checked before each ride, and the lever
pivots should be lubricated if necessary.
1. Brake light switch
2. Brake light switch adjusting nutRecommended lubricant:
Engine oil
Recommended lubricants:
Front brake lever:
Silicone grease
Rear brake lever:
Lithium-soap-based grease

8-34
8
EBU24962Checking the wheel hub bearings The front and rear wheel hub bearings must be
checked at the intervals specified in the periodic
maintenance and lubrication chart. If there is play
in a wheel hub or if a wheel does not turn smoothly,
have a Yamaha dealer check the wheel hub bear-
ings.EBU25102Lubricating the steering shaft The steering shaft must be lubricated at the inter-
vals specified in the periodic maintenance and lu-
brication chart.EBU25222Battery This model is equipped with a sealed-type (MF)
battery, which does not require any maintenance.
There is no need to check the electrolyte or to add
distilled water. Check and, if necessary, tighten the
battery lead connections.
CAUTION:ECB00620Never attempt to remove the battery cell seals,as this would permanently damage the battery.
WARNING
EWB02160Battery electrolyte is poisonous and danger-
ous, as it contains sulfuric acid, which can
cause severe burns. Avoid contact with skin,
eyes or clothing. Always shield your eyes
when working near batteries.
Antidote:
EXTERNAL: Flush with water.
INTERNAL: Drink large quantities of water or
milk. Follow with milk of magnesia, beaten egg
or vegetable oil. Call a physician immediately.
EYES: Flush with water for 15 minutes and get
prompt medical attention.
Batteries produce explosive gases. Keep
sparks, flame, cigarettes or other sources of ig-
nition away. Ventilate when charging or using
in an enclosed space.KEEP OUT OF REACH OF CHILDREN. Recommended lubricant:
Lithium-soap-based grease

INDEX
AAccessories and loading ................................................ 6-6
Air filter element, cleaning ............................................ 8-20
Auxiliary light bulb ........................................................ 8-38
Axle boots .................................................................... 8-31BBattery .......................................................................... 8-34
Brake fluid, changing ................................................... 8-28
Brake fluid level, checking ........................................... 8-27
Brake lever free play, checking the front ...................... 8-29
Brake lever, front ............................................................ 4-8
Brake lever, rear ............................................................ 4-8
Brake lever (rear) and brake pedal free play,
and brake pedal position, checking ........................... 8-29
Brake levers, checking and lubricating ........................ 8-32
Brake light switches ..................................................... 8-31
Brake pads and shoes, checking ................................. 8-26
Brake pedal .................................................................... 4-9
Brake pedal, checking and lubricating ......................... 8-33
Brakes, front and rear .................................................... 5-3CCables, checking and lubricating ................................. 8-32
Carburetor, adjusting ................................................... 8-23
Carrier, front ................................................................. 4-17
Carrier, rear .................................................................. 4-17
Catalytic converter ....................................................... 4-20
Chassis fasteners .......................................................... 5-7
Cleaning ......................................................................... 9-1
DDifferential gear oil (4WD model) ................................... 5-3
Differential gear oil, changing (4WD model) ................ 8-18
Drive select lever ......................................................... 4-10
Drive select lever and driving in reverse ........................ 6-3
Drive select lever safety system cable, adjusting ........ 8-26EEngine break-in .............................................................. 6-4
Engine, cold start ........................................................... 6-1
Engine idling speed ..................................................... 8-24
Engine oil ....................................................................... 5-3
Engine oil and oil filter cartridge ................................... 8-11
Engine, starting a warm ................................................. 6-3
Engine stop switch ......................................................... 4-4FFinal gear oil ......................................................... 5-3, 8-15
Four-wheel-drive indicator light (4WD model) ............... 4-3
Fuel ....................................................................... 4-11, 5-3
Fuel cock ..................................................................... 4-13
Fuel tank cap ............................................................... 4-11
Fuses, replacing .......................................................... 8-36HHandlebar switches ....................................................... 4-4
Hazard switch ................................................................ 4-5
Headlight beam ............................................................ 8-37
Headlight bulb .............................................................. 8-37
High beam indicator light ............................................... 4-2
Horn switch .................................................................... 4-5

IIdentification numbers .................................................. 11-1
Indicator lights and warning light .................................... 4-2
Instruments, lights and switches .................................... 5-7KKey identification number ............................................. 11-1LLabel locations ............................................................... 2-1
Light switch .................................................................... 4-5MMain switch .................................................................... 4-1
Maintenance and lubrication chart ................................. 8-5
Maintenance chart, emission control system ................. 8-3
Model label ................................................................... 11-2NNeutral indicator light ..................................................... 4-2OOil temperature warning light ......................................... 4-2
On-Command four-wheel-drive switch (4WD model) ..... 4-5
Owner’s manual and tool kit ........................................... 8-1PPanel, removing and installing ....................................... 8-9
Parking ........................................................................... 6-5
Parking brake ................................................................. 4-9
Parking on a slope ......................................................... 6-5
Part locations ................................................................. 3-1
Pre-operation check list .................................................. 5-1RRecoil starter ................................................................ 4-10
Reverse indicator light .................................................... 4-2
Riding your ATV ............................................................. 7-1
SSafety information .......................................................... 1-1
Seat .............................................................................. 4-15
Shock absorber assemblies, adjusting the front .......... 4-17
Shock absorber assembly, adjusting the rear .............. 4-19
Spark plug, checking ...................................................... 8-9
Specifications ............................................................... 10-1
Speed limiter .................................................................. 4-7
Speedometer .................................................................. 4-3
Starter (choke) ............................................................. 4-14
Start switch ..................................................................... 4-4
Steering lock ................................................................ 4-15
Steering shaft, lubricating ............................................. 8-34
Storage ........................................................................... 9-2
Storage compartment ................................................... 4-16TTail/brake light bulb, replacing ..................................... 8-37
Throttle cable free play, adjusting ................................ 8-25
Throttle lever ........................................................... 4-6, 5-4
Tire pressure, measuring ............................................... 5-5
Tires ............................................................................... 5-4
Tire wear limit ................................................................. 5-6
Troubleshooting ........................................................... 8-40
Troubleshooting chart .................................................. 8-41
Turn signal indicator light ............................................... 4-2
Turn signal light bulb, replacing ................................... 8-38
Turn signal switch .......................................................... 4-5VValve clearance ............................................................ 8-25
V-belt case drain plug .................................................. 8-23
V-belt cooling duct check hose .................................... 8-23
Vehicle identification number ....................................... 11-1