YAMAHA GRIZZLY 450 2009 Owners Manual

8-4
8
6*Exhaust systemCheck for leakage and replace gasket(s) if neces-
sary.
Check for looseness and tighten all screw clamps
and joints if necessary.√√√
7 Spark arresterClean.√√√ 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
U37S60E0.book Page 4 Thursday, June 5, 2008 6:51 PM

8-5
8
EBU21864General maintenance and lubrication chart 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
1 Air filter elementClean and replace if necessary.Every 20–40 hours (more often in wet or
dusty areas)
2*Front brakeCheck operation and correct if necessary.
Check fluid level and ATV for fluid leakage, and
correct if necessary.√√√√√
Replace brake pads. Whenever worn to the limit
3*Rear brakeCheck operation and correct if necessary.
Check brake lever and pedal free play, and adjust
if necessary.√√√√√
Replace brake friction plates. Whenever worn to the limit
4*Brake hosesCheck for cracks or other damage, and replace if
necessary.√√√√
Replace. Every 4 years
5*WheelsCheck runout and for damage, and replace if nec-
essary.√ √√√
6*TiresCheck tread depth and for damage, and replace if
necessary.
Check air pressure and balance, and correct if
necessary.√ √√√
7*Wheel hub bearingsCheck for looseness or damage, and replace if
necessary.√ √√√
8*V- b e l tCheck for wear, cracks or other damage, and re-
place if necessary.√ √√√
U37S60E0.book Page 5 Thursday, June 5, 2008 6:51 PM

8-6
8
9*Drive shaft univer-
sal jointLubricate 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*Stabilizer bushesCheck for cracks or other damage, and replace if
necessary.√√√
13*Rear knuckle pivotsLubricate with lithium-soap-based grease.√√√
14*Steering shaftLubricate with lithium-soap-based grease.√√√
15*Steering systemCheck operation and repair or replace if damaged.
Check toe-in and adjust if necessary.√√√√√
16*Engine mountCheck for cracks or other damage, and replace if
necessary.√√√
17*Axle bootsCheck for cracks or other damage, and replace if
necessary.√√√√√
18 Engine oilChange.
Check ATV for oil leakage, and correct if neces-
sary.√ √√√
19Engine oil filter car-
tridgeReplace.√√√
20*Engine oil strainerClean.√√√
21 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)1300
(800)2500
(1600)2500
(1600)5000
(3200)
hours 20 80 160 160 320
U37S60E0.book Page 6 Thursday, June 5, 2008 6:51 PM

8-7
8
EBU28390TIP
The air filter needs more frequent service if you are riding in unusually wet or dusty areas.22 Final gear oilChange.
Check ATV for oil leakage, and correct if neces-
sary.√√√
23 Cooling systemCheck coolant level and ATV for coolant leakage,
and correct if necessary.√√√√√
Replace coolant. Every 2 years
24*Moving parts and
cablesLubricate.√√√√
25*Drive select lever
safety system cableCheck operation and adjust or replace if neces-
sary.√√√
26*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.√√√√√
27*Front and rear brake
switchesCheck operation and correct if necessary.√√√√√
28*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 320U37S60E0.book Page 7 Thursday, June 5, 2008 6:51 PM

8-8
8

Hydraulic brake service
Regularly check and, if necessary, correct the brake fluid level.
Every two years replace the internal components of the brake master cylinder and calipers, and change
the brake fluid.Replace the brake hoses every four years and if cracked or damaged.
U37S60E0.book Page 8 Thursday, June 5, 2008 6:51 PM

8-9
8
EBU23090Removing and installing panels The panels shown need to be removed to perform
some of the maintenance jobs described in this
chapter. Refer to this section each time a panel
needs to be removed and installed.
EBU27600Panels A and D
To remove one of the panels1. Remove the seat. (See page 4-18.)
2. Pull outward on the areas shown, and then
pull upward as shown.
1. Panel A
2. Panel B
1. Panel C
2. Panel D
3. Panel E
4. Panel F
U37S60E0.book Page 9 Thursday, June 5, 2008 6:51 PM

8-10
8 To install one of the panels
1. Place the panel in its original position.
U37S60E0.book Page 10 Thursday, June 5, 2008 6:51 PM

8-11
8
2. Install the seat.Panel B
To remove the panel
Remove the bolt, and then take the panel off.
To install the panelPlace the panel in the original position and install
the bolt.NOTICEECB00380When installing the panel, be sure not to pinchthe cables or wires.1. Panel B
2. Bolt
U37S60E0.book Page 11 Thursday, June 5, 2008 6:51 PM

8-12
8 Panel C
To remove the panel
1. Remove the carrier top bolts.
2. Remove the carrier bolts under the fenders,
and then take the carrier off.3. Remove the quick fastener screws, and then
pull the panel upward to remove it.1. Carrier bolt (top)
1
1
1
1. Carrier bolt (under the fenders)
U37S60E0.book Page 12 Thursday, June 5, 2008 6:51 PM

8-13
8To install the panel
1. Place the panel in the original position, and
then install the quick fastener screws.
2. Place the carrier in the original position, and
then install the carrier bolts under the fenders.
3. Install the carrier top bolts, and then tighten all
bolts to the specified torques.Panel E
To remove the panel
Remove the bolts, and then take the panel off.
1. Quick fastener screw
2. Panel C
1
2
Tightening torques:
Carrier bolt (top):
34 Nm (3.4 m·kgf, 24 ft·lbf)
Carrier bolt (under fenders):
7 Nm (0.7 m·kgf, 5.1 ft·lbf)1. Panel E
2. Bolt
U37S60E0.book Page 13 Thursday, June 5, 2008 6:51 PM