check oil YAMAHA GRIZZLY 250 2010 Owners Manual

EBU17420
TABLE OF CONTENTS
LOCATION OF THE WARNING AND
SPECIFICATION LABELS ............................ 1-1
SAFETY INFORMATION .............................. 2-1
DESCRIPTION .............................................. 3-1
Left view ...................................................... 3-1
Right view.................................................... 3-1
Controls and instruments ............................ 3-2
INSTRUMENT AND CONTROL
FUNCTIONS .................................................. 4-1
Main switch ................................................ 4-1
Indicator lights ............................................ 4-2
Handlebar switches .................................... 4-2
Throttle lever .............................................. 4-3
Speed limiter .............................................. 4-4
Front brake lever ........................................ 4-4
Brake pedal and rear brake lever ............... 4-5
Parking brake ............................................. 4-6
Shift pedal .................................................. 4-6
Drive select lever ........................................ 4-7
Recoil starter .............................................. 4-7
Fuel tank cap .............................................. 4-7Fuel .............................................................4-8
Fuel cock ....................................................4-9
Starter (choke) ..........................................4-11
Seat ..........................................................4-11
Storage compartment ...............................4-12
Front carrier ..............................................4-13
Rear carrier ...............................................4-13
Adjusting the rear shock absorber
assembly .................................................4-14
PRE-OPERATION CHECKS ..........................5-1
Fuel .............................................................5-3
Engine oil ....................................................5-3
Final 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
Battery ........................................................5-6
OPERATION...................................................6-1
Starting a cold engine .................................6-1
Starting a warm engine ...............................6-2U1P065E0.book Page 1 Monday, August 31, 2009 1:10 PM

Operating the drive select lever and
driving in reverse ...................................... 6-3
Shifting ....................................................... 6-4
Engine break-in .......................................... 6-6
Parking ....................................................... 6-7
Parking on a slope ..................................... 6-7
Accessories and loading ............................ 6-8
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 ................................... 7-14
RIDING DOWNHILL.................................. 7-16
CROSSING A SLOPE............................... 7-17
CROSSING THROUGH SHALLOW
WATER ................................................... 7-18
RIDING OVER ROUGH TERRAIN ........... 7-20
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 ....................... 8-1Periodic 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 element .................8-11
Final gear oil .............................................8-17
Cleaning the air filter element ...................8-20
Cleaning the spark arrester ......................8-23
Adjusting the carburetor ............................8-25
Adjusting the engine idling speed .............8-25
Adjusting the throttle cable 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 ............................................8-27
Checking the brake fluid level ...................8-29
Changing the brake fluid ...........................8-29
Checking the front brake lever free play ...8-30
Adjusting the brake pedal position, free
play and the rear brake lever free play ...8-30
Brake light switches ..................................8-33
Adjusting the clutch free play ....................8-34
Checking and lubricating the cables .........8-35
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5-1
5
EBU19201
PRE-OPERATION CHECKS
EBU19224Inspect 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
EWB00481Failure 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:
ITEM ROUTINE PAGE
FuelCheck fuel level in fuel tank, and add recommended fuel if neces-
sary.
Check fuel line for leakage. Correct if necessary.4-8, 5-3
Engine oilCheck oil level in engine, and add recommended oil to specified lev-
el if necessary.
Check ATV for oil leakage. Correct if necessary.5-3, 8-11
Final gear oilCheck ATV for oil leakage. Correct if necessary. 5-3, 8-17
Front brakeCheck operation. If soft or spongy, have Yamaha dealer bleed hy-
draulic system.
Check brake pads for wear, and replace if necessary.
Check brake fluid level in reservoir, and add recommended brake
fluid to specified level if necessary.
Check hydraulic system for leakage. Correct if necessary.5-3, 8-27, 8-29, 8-30
U1P065E0.book Page 1 Monday, August 31, 2009 1:10 PM

5-3
5
EBU19541Fuel Make sure that there is sufficient fuel in the tank.
(See page 4-8.)EBU19560Engine oil Make sure that the engine oil is at the specified lev-
el. Add oil as necessary. (See page 8-11.)EBU19590Final gear oil Make sure that the final gear oil is at the specified
level. Add oil as necessary. (See page 8-17.)EBU27671Front and rear brakes Brake 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 lever
and brake pedal. If the free play is incorrect, ad-
just it. (See page 8-30.)

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, check
the brake pads and shoes for wear. (See page
8-27.)Recommended brake fluid:
DOT 4
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8-6
8
5*Brake hosesCheck for cracks or other damage, and replace if
necessary.√√√√
Replace. Every 4 years
6*WheelsCheck runout and for damage, and replace if nec-
essary.√ √√√
7*TiresCheck tread depth and for damage, and replace if
necessary.
Check air pressure and balance, and correct if
necessary.√ √√√
8*Wheel hub bearingsCheck for looseness or damage, and replace if
necessary.√ √√√
9*Swingarm pivotsCheck operation and for excessive play, and re-
place bearings if necessary.
Lubricate with lithium-soap-based grease.√√√
10*Chassis fastenersMake sure that all nuts, bolts, and screws are
properly tightened.√√√√√
11*Shock absorber as-
sembliesCheck operation and correct if necessary.
Check for oil leakage and replace if necessary.√√√
12*Steering shaftLubricate with lithium-soap-based grease.√√√
13*Steering systemCheck operation and repair or replace if damaged.
Check toe-in and adjust if necessary.√√√√√ NO. ITEMCHECK OR MAINTENANCE
JOBINITIAL EVERY
Whichev-
er comes
firstmonth136612
km
(mi)320
(200)1300
(800)2500
(1600)2500
(1600)5000
(3200)
hours 20 80 160 160 320
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8-7
8
14 Engine oilChange.
Check ATV for oil leakage, and correct if neces-
sary.√ √√√
15Engine oil filter ele-
mentClean or replace if necessary.√√√
16 Engine oil strainerClean.√√√
17 Final gear oilChange.
Check ATV for oil leakage, and correct if neces-
sary.√√
18*Moving parts and
cablesLubricate.√√√√
19*Drive select lever
safety system cableCheck operation and adjust or replace if neces-
sary.√√√
20*Throttle lever hous-
ing and cableCheck operation and correct if necessary.
Check throttle cable free play and adjust if neces-
sary.
Lubricate throttle lever housing and cable.√√√√√
21*Front and rear brake
switchesCheck operation and correct if necessary.√√√√√
22*Lights and switchesCheck operation and correct if necessary.
Adjust headlight beams.√√√√√ NO. ITEMCHECK OR MAINTENANCE
JOBINITIAL EVERY
Whichev-
er comes
firstmonth136612
km
(mi)320
(200)1300
(800)2500
(1600)2500
(1600)5000
(3200)
hours 20 80 160 160 320U1P065E0.book Page 7 Monday, August 31, 2009 1:10 PM

8-11
8
TIPIf a torque wrench is not available when installing
the spark plug, a good estimate of the correct
torque is 1/4–1/2 turn past finger tight. However,
the spark plug should be tightened to the specified
torque as soon as possible.3. Install the spark plug cap.EBU2329FEngine oil and oil filter element The engine oil level should be checked before
each ride. In addition, the oil must be changed and
the oil filter element cleaned at the intervals speci-
fied in the periodic maintenance and lubrication
chart.
To check the engine oil level
1. Place the ATV on a level surface.
2. 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.3. Remove the engine oil filler cap, and then
wipe the engine oil 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.TIPThe engine oil should be between the minimum
and maximum level marks.
Tightening torque:
Spark plug:
17.5 Nm (1.75 m·kgf, 12.7 ft·lbf)
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8-16
8 12. Install the oil strainer, the compression spring,
a new O-ring and the engine oil drain bolt, and
then tighten the engine oil drain bolt to the
specified torque. NOTICE: Before installing
the engine oil drain bolt, be sure to install
the O-ring, compression spring and oil
strainer.
[ECB00321]
13. 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.14. 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.
15. Turn the engine off, wait at least ten minutes,
and then check the oil level and correct it if
necessary.
16. Install the footboard by installing the bolts, and
then tighten them to the specified torques. Tightening torque:
Engine oil drain bolt:
43 Nm (4.3 m·kgf, 31 ft·lbf)
Recommended oil:
See page 10-1.
Oil quantity:
Without oil filter element removal:
1.50 L (1.59 US qt, 1.32 Imp.qt)
With oil filter element removal:
1.60 L (1.69 US qt, 1.41 Imp.qt)
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8-17
8
17. Adjust the brake pedal free play. (See page
8-30.)
EBU23386Final 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.
1. Footboard bolt A
2. Footboard bolt BTightening torques:
Footboard bolt A:
4 Nm (0.4 m·kgf, 2.9 ft·lbf)
Footboard bolt B:
7 Nm (0.7 m·kgf, 5.1 ft·lbf)
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8-18
8
3. If the oil is below the brim of the filler hole, add
sufficient oil of the recommended type to raise
it to the correct level.
4. Check the gasket for damage, and replace it if
necessary.
5. Install the oil filler bolt and its gasket, and then
tighten the bolt to the specified torque.To change the final gear oil
1. Place the ATV on a level surface.
2. Remove the final gear case guard by remov-
ing the bolts.
3. Place an oil pan under the final gear case to
collect the used oil.
4. Remove the final gear oil filler bolt, the final
gear oil drain bolt, and their gasket to drain the
oil from the final gear case.
1. Final gear oil filler bolt
2. Gasket
3. Final gear oil
4. Correct oil levelTightening torque:
Final gear oil filler bolt:
23 Nm (2.3 m·kgf, 17 ft·lbf)
1
2
4
3
1. Final gear case guard
2. Bolt
U1P065E0.book Page 18 Monday, August 31, 2009 1:10 PM