2009 YAMAHA GRIZZLY 450 steering

Checking the front brake lever free
play ......................................................... 8-41
Adjusting the brake pedal and rear brake
lever free play and checking the brake
pedal position ......................................... 8-42
Axle boots ................................................ 8-46
Brake light switches ................................. 8-47
Checking and lubricating the cables ........ 8-48
Checking and lubricating the front and
rear brake levers .................................... 8-48
Checking and lubricating the brake
pedal ...................................................... 8-48
Checking the wheel hub bearings ............ 8-49
Lubricating the drive shaft universal
joint ......................................................... 8-49
Checking the stabilizer bushes ................ 8-49
Lubricating the rear knuckle pivots ........... 8-50
Lubricating the steering shaft ................... 8-50
Battery ...................................................... 8-50
Replacing a fuse ...................................... 8-52
Replacing a headlight bulb ....................... 8-54
Adjusting a headlight beam ...................... 8-56
Replacing the tail/brake light bulb ............ 8-56
Removing a wheel .................................... 8-58
Installing a wheel ...................................... 8-58
Troubleshooting ....................................... 8-60
Troubleshooting charts ............................. 8-61CLEANING AND STORAGE ..........................9-1
Cleaning ......................................................9-1
Storage .......................................................9-2
SPECIFICATIONS .......................................10-1
CONSUMER INFORMATION.......................11-1
Identification numbers ...............................11-1
U37S60E0.book Page 3 Thursday, June 5, 2008 6:51 PM

6-7
6 ity or suitability. Choose a genuine Yamaha ac-
cessory, or one that is equivalent in design and
quality.

Accessories should be rigidly and securely
mounted. An accessory which can shift position
or come off while you are riding could affect your
ability to control the ATV.
Do not mount an accessory where it could inter-
fere with your ability to control the ATV. Exam-
ples include (but are not limited to) a heavy or
bulky object attached to the handlebars which
could make steering difficult, an accessory that
limits your ability to move around on the seat, or
one that limits your view.
Use extra caution when riding an ATV with ac-
cessories. The ATV may handle differently than
it does without accessories.EBU27570Loading
Cargo or a trailer can change the stability and han-
dling of an ATV.
You must use common sense and good judgment
when carrying cargo or towing a trailer. Keep the
following points in mind:
Never exceed the weight limits shown. An over-
loaded ATV can be unstable.

Do not exceed the maximum tongue weight.
You can measure tongue weight with a bath-
room scale. Put the tongue of the loaded trailer
on the scale with the tongue at hitch height. Ad-
just the load in the trailer, if necessary, to reduceMAXIMUM LOADING LIMIT
ATV loading limit (total weight of rider, cargo,
accessories, and tongue):
210.0 kg (463 lb)
Fron t c a rr ie r :
40.0 kg (88 lb)
Rear carrier:
80.0 kg (176 lb)
Front storage compartment:
0.5 kg (1 lb)
Rear storage compar tment:
2.0 kg (4 lb)
Trailer hitch:
Pulling load (total weight of trailer and car-
go):
5880 N (600 kgf, 1322 lbf)
Tongue weight (ver tical weight on trailer
hitch point):
147 N (15 kgf, 33 lbf)
U37S60E0.book Page 7 Thursday, June 5, 2008 6:51 PM

7-19
7 to cross a sloping surface. Avoid slopes with slip-
pery surfaces or rough terrain that may upset your
balance.
As you travel across a slope, lean your body in the
uphill direction. It may be necessary to correct the
steering when riding on loose surfaces by pointing
the front wheels slightly uphill. When riding on
slopes, be sure not to make sharp turns either up
or down hill.
If your ATV does begin to tip over, gradually steer
in the downhill direction if there are no obstacles in
your path. As you regain proper balance, gradually
steer again in the direction you wish to travel.
WARNING
EWB01631Never attempt to turn the ATV around on any
hill until you have mastered the turning tech-
nique as described in the Owner’s Manual on
level ground. Be very careful when turning on
any hill. Avoid crossing the side of a steep hill
if possible.
When crossing the side of a hill:
Always follow proper procedures as de-
scribed in the Owner’s Manual.
Avoid hills with excessively slippery or loose
surfaces.

Shift your weight to the uphill side of theATV.
CROSSING THROUGH SHALLOW WATER
The ATV can be used to cross slow moving, shal-
low water of up to a maximum of 35 cm (14 in) in
depth. Before entering the water, choose your path
carefully. Enter where there is no sharp drop off,
and avoid rocks or other obstacles which may be
slippery or upset the ATV. Drive slowly and care-
fully.
U37S60E0.book Page 19 Thursday, June 5, 2008 6:51 PM

7-23
7 you go over obstacles, always follow proper
procedures as described in the Owner’s Manu-
al.
SLIDING AND SKIDDING
Care should be used when riding on loose or slip-
pery surfaces since the ATV may slide. If unex-
pected and uncorrected, sliding could lead to an
accident.
To reduce the tendency for the front wheels to slide
in loose or slippery conditions, positioning your
weight over the front wheels will sometimes help.If the rear wheels of your ATV start to slide side-
ways, control can usually be regained (if there is
room to do so) by steering in the direction of the
slide. Applying the brakes or accelerating is not
recommended until you have corrected the slide.
With practice, over a period of time, skill at con-
trolled sliding can be developed. The terrain
should be chosen carefully before attempting such
maneuvers, since both stability and control are re-
duced. Bear in mind that sliding maneuvers should
always be avoided on extremely slippery surfaces
such as ice, since all control may be lost.U37S60E0.book Page 23 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

8-50
8
EBU25051Lubricating the rear knuckle pivots The rear knuckle pivots must be lubricated at the
intervals specified in the periodic maintenance and
lubrication chart.
Lubricate the pivoting points using a grease gun.
EBU25102Lubricating the steering shaft The steering shaft must be lubricated at the inter-
vals specified in the periodic maintenance and lu-
brication chart.EBU29182Battery This model is equipped with a VRLA (Valve Regu-
lated Lead Acid) battery. There is no need to check
the electrolyte or to add distilled water. However,
the battery lead connections need to be checked
and, if necessary, tightened.NOTICEECB00620Never attempt to remove the battery cell seals,as this would permanently damage the battery. Recommended lubricant:
Lithium-soap-based grease
1. Grease nipple
Recommended lubricant:
Lithium-soap-based grease
U37S60E0.book Page 50 Thursday, June 5, 2008 6:51 PM

Horn switch .................................................................... 4-6IIdentification 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 .................................................................... 4-6
Low-range indicator light ................................................ 4-3MMain switch .................................................................... 4-1
Maintenance and lubrication chart ................................. 8-5
Maintenance chart, emission control system ................. 8-3
Model label ................................................................... 11-2
Multifunction display ....................................................... 4-4NNeutral indicator light ..................................................... 4-2OOn-Command differential gear lock switch .................... 4-8
On-Command four-wheel-drive switch ........................... 4-7
Override switch .............................................................. 4-6
Owner’s manual and tool kit ........................................... 8-1PPanels, removing and installing ..................................... 8-9
Park indicator light .......................................................... 4-3
Parking ........................................................................... 6-6
Parking on a slope ......................................................... 6-6
Part locations ................................................................. 3-1
Pre-operation check list .................................................. 5-1
RRear knuckle pivots, lubricating ................................... 8-50
Recoil starter ................................................................ 4-14
Reverse indicator light .................................................... 4-2
Riding your ATV ............................................................. 7-1SSafety information .......................................................... 1-1
Seat .............................................................................. 4-18
Shock absorber assemblies, adjusting the front and
rear ............................................................................ 4-21
Spark arrester, cleaning ............................................... 8-34
Spark plug, checking .................................................... 8-14
Specifications ............................................................... 10-1
Speed limiter ................................................................ 4-12
Stabilizer bushes, checking .......................................... 8-49
Starter (choke) ............................................................. 4-17
Start switch ..................................................................... 4-6
Steering shaft, lubricating ............................................. 8-50
Storage ........................................................................... 9-2
Storage compartments ................................................. 4-19TTail/brake light bulb, replacing ..................................... 8-56
Throttle cable free play, adjusting ................................ 8-38
Throttle lever ......................................................... 4-11, 5-4
Tire pressure, measuring ............................................... 5-6
Tires ............................................................................... 5-5
Tire wear limit ................................................................. 5-7
Troubleshooting ........................................................... 8-60
Troubleshooting charts ................................................. 8-61VValve clearance ............................................................ 8-38
V-belt case drain plug .................................................. 8-36
U37S60E0.book Page 2 Thursday, June 5, 2008 6:51 PM