2011 YAMAHA GRIZZLY 450 checking oil

Starting a warm engine .............................. 6-3
Operating the drive select lever and
driving in reverse ...................................... 6-3
Engine break-in .......................................... 6-5
Parking ....................................................... 6-5
Parking on a slope ..................................... 6-6
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... .................................... 7-23
WHAT TO DO... ........................................ 7-23
PERIODIC MAINTENANCE AND
ADJUSTMENT ............................................... 8-1
Owner’s manual and tool kit ....................... 8-2Periodic maintenance chart for
the emission control system .....................8-3
General maintenance and lubrication
chart ..........................................................8-5
Removing and installing panels ................8-10
Checking the spark plug ...........................8-14
Engine oil and oil filter cartridge ................8-17
Final gear oil .............................................8-21
Differential gear oil ....................................8-24
Coolant .....................................................8-26
Cleaning the air filter element ...................8-30
Cleaning the spark arrester ......................8-33
V-belt cooling duct check hose .................8-35
V-belt case drain plug ...............................8-35
Adjusting the carburetor ............................8-36
Adjusting the engine idling speed .............8-36
Adjusting the throttle lever free play .........8-37
Valve clearance ........................................8-38
Adjusting the drive select lever safety
system cable ...........................................8-38
Brakes .......................................................8-38
Checking the front brake pads and rear
brake friction plates .................................8-39
Checking the brake fluid level ...................8-40
Changing the brake fluid ...........................8-40
Checking the front brake lever free
play .........................................................8-41
U1CT60E0.book Page 2 Monday, May 31, 2010 10:05 AM

8-17
8
EBU30240Engine oil and oil filter cartridge The engine oil level should be checked before
each ride. In addition, the oil must be changed and
the oil filter cartridge replaced at the intervals spec-
ified in the periodic maintenance and lubrication
chart.
To check the engine oil level
1. Place the ATV on a level surface.
2. Remove panel E. (See page 8-10.)
3. Check the engine oil level on a cold engine.TIPIf 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.4. Remove the engine oil filler cap, and then
wipe the engine oil dipstick off with a clean
rag.5. Insert the dipstick into the filler hole (without
screwing it in), and then remove it again to
check the oil level.
TIPThe engine oil should be between the tip of the dip-
stick and the maximum level mark.1. Engine oil filler cap
U1CT60E0.book Page 17 Monday, May 31, 2010 10:05 AM

8-21
812. Refill with the specified amount of the recom-
mended engine oil, and then install and tight-
en the engine oil filler cap.
TIPBe sure to wipe off spilled oil on any parts after the
engine and exhaust system have cooled down.NOTICEECB00300
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 the
crankcase.13. 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.
14. Turn the engine off, wait at least ten minutes,
and then check the oil level and correct it if
necessary.
15. Install panel E.EBU30270Final 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.
2. Remove the final gear oil filler bolt and its gas-
ket, and then check the oil level in the final
gear case. The oil level should be at the brim
of the filler hole. Recommended oil:
See page 10-1.
Oil quantity:
Without oil filter cartridge replacement:
2.30 L (2.43 US qt, 2.02 Imp.qt)
With oil filter cartridge replacement:
2.40 L (2.54 US qt, 2.11 Imp.qt)
U1CT60E0.book Page 21 Monday, May 31, 2010 10:05 AM

8-40
8
EBU29840Checking the brake fluid level Insufficient brake fluid may allow air to enter the
brake system, possibly causing it to become inef-
fective.
Before riding, check that the brake fluid is above
the minimum level mark and replenish if neces-
sary. A low brake fluid level may indicate worn
brake pads and/or brake system leakage. If the
brake fluid level is low, be sure to check the brake
pads for wear and the brake system for leakage.
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.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,
1. Minimum level mark
Recommended brake fluid:
DOT 4
U1CT60E0.book Page 40 Monday, May 31, 2010 10:05 AM

8-41
8have 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.
EBU30341Adjusting the rear brake lever and
brake pedal free play, and the brake
pedal height The rear brake lever and brake pedal free play,
and the brake pedal height must be checked and,
if necessary, adjusted at the intervals specified in
the periodic maintenance and lubrication chart.
Adjusting the brake lever free play
The brake lever free play should measure 10.0 mm
(0.39 in). If the free play is incorrect, adjust it as fol-
lows.
1. Loosen the locknut at the brake lever.
1. No brake lever free play
1. Brake lever free play
U1CT60E0.book Page 41 Monday, May 31, 2010 10:05 AM

8-47
8
EBU24901Checking 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
EWB02581
Inspect 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
restrict the operation of controls and lead to
an accident or injury.
Always make sure all control cables work
smoothly before you begin riding in cold
weather. If the control cables are frozen or do
not work smoothly, you could be unable to
control the ATV, which could lead to an acci-
dent or collision.
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.
Front brake lever Recommended lubricant:
Engine oilRecommended lubricants:
Front brake lever:
Silicone grease
Rear brake lever:
Lithium-soap-based grease
U1CT60E0.book Page 47 Monday, May 31, 2010 10:05 AM

INDEX
AAccessories and loading ................................................ 6-6
Accessories, auxiliary jack ........................................... 4-23
Air filter element, cleaning ............................................ 8-30
Axle boots .................................................................... 8-45BBattery .......................................................................... 8-51
Brake fluid, changing .................................................... 8-40
Brake fluid level, checking ............................................ 8-40
Brake lever free play, checking the front ...................... 8-41
Brake lever, front .......................................................... 4-13
Brake levers, checking and lubricating ......................... 8-47
Brake light switches ..................................................... 8-46
Brake pads and friction plates, checking ...................... 8-39
Brake pedal and rear brake lever ................................. 4-13
Brake pedal, checking and lubricating ......................... 8-48
Brakes .......................................................................... 8-38
Brakes, front and rear .................................................... 5-3CCables, checking and lubricating ................................. 8-47
Carburetor, adjusting .................................................... 8-36
Carrier, front ................................................................. 4-22
Carrier, rear .................................................................. 4-22
Chassis fasteners ........................................................... 5-7
Cleaning ......................................................................... 9-1
Coolant .................................................................. 5-3, 8-26
Coolant temperature warning light ................................. 4-3
DDifferential gear oil ................................................ 5-3, 8-24
Drive select lever .......................................................... 4-14
Drive select lever and driving in reverse ........................ 6-3
Drive select lever safety system cable, adjusting ......... 8-38
Drive shaft universal joint, lubricating ........................... 8-49EEngine break-in .............................................................. 6-5
Engine, cold start ........................................................... 6-1
Engine idling speed ...................................................... 8-36
Engine oil ....................................................................... 5-3
Engine oil and oil filter cartridge ................................... 8-17
Engine, starting a warm ................................................. 6-3
Engine stop switch ......................................................... 4-7
EPS warning light ........................................................... 4-3FFinal gear oil .......................................................... 5-3, 8-21
Four-wheel-drive/differential gear lock indicator ............ 4-4
Fuel ....................................................................... 4-15, 5-3
Fuel cock ...................................................................... 4-16
Fuel gauge ..................................................................... 4-6
Fuel tank cap ................................................................ 4-14
Fuses, replacing ........................................................... 8-53HHandlebar switches ........................................................ 4-6
Headlight beam, adjusting ............................................ 8-56
Headlight bulb, replacing .............................................. 8-55
High-range indicator light ............................................... 4-2
U1CT60E0.book Page 1 Monday, May 31, 2010 10:05 AM