2007 YAMAHA GRIZZLY 660 oil change

8-5
8
15*Shock absorber as-
sembliesCheck operation and correct if necessary.
Check for oil leakage and replace if necessary.√√√
16*Stabilizer bushesCheck for cracks or other damage, and replace if
necessary.√√√
17*Knuckle pivotsLubricate with lithium-soap-based grease.√√√
18*Steering systemCheck operation and repair or replace if damaged.
Check toe-in and adjust if necessary.√√√√√
19*Engine mountCheck for cracks or other damage, and replace if
necessary.√√√
20*Axle bootsCheck for cracks or other damage, and replace if
necessary.√√√√√
21*CarburetorCheck starter (choke) operation and correct if nec-
essary.
Check engine idling speed and adjust if neces-
sary.√√√√
22*Crankcase breather
systemCheck breather hose for cracks or other damage,
and replace if necessary.√√√
23 Engine oilChange.
Check ATV for oil leakage, and correct if neces-
sary.√ √√√
24Engine oil filter car-
tridgeReplace.√√√
25 Differential gear oilChange.
Check ATV for oil leakage, and correct if neces-
sary.√√ NO. ITEMCHECK OR MAINTENANCE
JOBINITIAL EVERY
Whichev-
er comes
firstmonth136612
km
(mi)320
(200)1200
(750)2400
(1500)2400
(1500)4800
(3000)
hours 20 75 150 150 300U2C661E0.book Page 5 Thursday, March 16, 2006 10:45 AM

8-6
8
26 Final gear oilChange.
Check ATV for oil leakage, and correct if neces-
sary.√√
27 Cooling systemCheck coolant level and ATV for coolant leakage,
and correct if necessary.√√√√√
Replace coolant. Every 2 years
28*Moving parts and
cablesLubricate.√√√√
29*Drive select lever
safety system cableCheck operation and adjust or replace if neces-
sary.√√√
30*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.√√√√√
31*Exhaust systemCheck for leakage and replace gasket(s) if neces-
sary.
Check for looseness and tighten all screw clamps
and joints if necessary.√√√
32 Spark arresterClean.√√√
33*Front and rear brake
switchesCheck operation and correct if necessary.√√√√√
34*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)1200
(750)2400
(1500)2400
(1500)4800
(3000)
hours 20 75 150 150 300U2C661E0.book Page 6 Thursday, March 16, 2006 10:45 AM

8-17
8
NOTE:If a torque wrench is not available when installing
a 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 assoon as possible.
4. Install the spark plug cap.
5. Install the panel.EBU23321Engine 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. Remove panel F. (See page 8-8.)
2. Place the ATV on a level surface.
3. Start the engine, warm it up for several min-
utes, and then turn it off.
4. Wait a few minutes until the oil settles before
checking.
5. Remove the engine oil filler cap, and then
wipe the dipstick off with a clean rag.6. Insert the dipstick into the filler hole (without
screwing it in), and then remove it again to
check the oil level.
1. Engine oil filler cap
2. Dipstick
U2C661E0.book Page 17 Thursday, March 16, 2006 10:45 AM

8-18
8
NOTE:The engine oil should be between the minimumand maximum level marks.
7. 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.
8. Insert the dipstick into the oil filler hole, and
then tighten the engine oil filler cap.
9. Install the panel.To change the engine oil (with or without oil fil-
ter cartridge replacement)
1. Remove panel F. (See page 8-8.)
2. Place the ATV on a level surface.
3. Start the engine, warm it up for several min-
utes, and then turn it off.
4. Place an oil pan under the engine to collect
the used oil.
5. Remove the engine oil filler cap, and then re-
move the engine oil drain bolt to drain the oil
from the crankcase.1. Maximum level mark
2. Minimum level mark
1. Engine oil drain bolt
U2C661E0.book Page 18 Thursday, March 16, 2006 10:45 AM

8-21
8 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, and then check the oil lev-
el and correct it if necessary.
15. Install panel F.
EBU23410Changing the final 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 must be changed as follows
at the intervals specified in the periodic mainte-
nance and lubrication chart.
1. Place the ATV on a level surface.
2. Place an oil pan under the final gear case to
collect the used oil.
3. Remove the final gear oil filler bolt and the fi-
nal gear oil drain bolt to drain the oil from the
final gear case.
4. Install the drain bolt, and then tighten it to the
specified torque.
1. Final gear oil filler bolt
1. Final gear oil drain bolt
U2C661E0.book Page 21 Thursday, March 16, 2006 10:45 AM

8-22
85. Add the specified amount of the recommend-
ed final gear oil.
CAUTION:ECB00420Be sure no foreign material enters the finalgear case.
6. Install the oil filler bolt, and then tighten it to the
specified torque.
7. Check the final gear case for oil leakage. If oil
is leaking, check for the cause.
EBU23421Differential gear oil The differential gear case must be checked for oil
leakage before each ride. If any leakage is found,
have a Yamaha dealer check and repair the ATV.
In addition, the differential gear oil level must be
checked and the oil changed as follows at the in-
tervals specified in the periodic maintenance and
lubrication chart.
To check the differential gear oil level
1. Place the ATV on a level surface.NOTE:The differential gear oil level must be checked ona cold engine.
2. Remove the differential gear oil filler bolt, and
then check the oil level in the differential gear
case. Tightening torque:
Final gear oil drain bolt:
23 Nm (2.3 m·kgf, 17 ft·lbf)
Recommended final gear oil:
See page 10-1.
Oil quantity:
0.25 L (0.26 US qt) (0.22 Imp.qt)
Tightening torque:
Final gear oil filler bolt:
23 Nm (2.3 m·kgf, 17 ft·lbf)
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8-23
8
NOTE:The oil level should be at the brim of the filler hole.
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. Install the oil filler bolt, and then tighten it to the
specified torque.To change the differential gear oil
1. Place the ATV on a level surface.
2. Place an oil pan under the differential gear
case to collect the used oil.
3. Remove the differential gear oil filler bolt and
the differential gear oil drain bolt to drain the
oil from the differential gear case.
4. Install the drain bolt, and then tighten it to the
specified torque.1. Differential gear oil
2. Differential gear oil filler bolt
3. Correct oil levelTightening torque:
Differential gear oil filler bolt:
23 Nm (2.3 m·kgf, 17 ft·lbf)
1. Differential gear oil drain boltTightening torque:
Differential gear oil drain bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
U2C661E0.book Page 23 Thursday, March 16, 2006 10:45 AM

8-24
85. Add the recommended differential gear oil to
the brim of the filler hole as shown.
CAUTION:ECB00410Be sure no foreign material enters the differen-tial gear case.
6. Install the oil filler bolt, and then tighten it to the
specified torque.7. Check the differential gear case for oil leak-
age. If oil is leaking, check for the cause.
EBU23470Coolant The coolant level should be checked before each
ride. In addition, the coolant must be changed at
the intervals specified in the periodic maintenance
and lubrication chart.EBU27120To check the coolant level
1. Place the ATV on a level surface.NOTE:The coolant level must be checked on a cold en-
gine since the level varies with engine tempera-ture.
2. Check the coolant level in the coolant reser-
voir.
1. Differential gear oil
2. Differential gear oil filler bolt
3. Correct oil levelRecommended differential gear oil:
See page 10-1.
Tightening torque:
Differential gear oil filler bolt:
23 Nm (2.3 m·kgf, 17 ft·lbf)
U2C661E0.book Page 24 Thursday, March 16, 2006 10:45 AM