2012 YAMAHA GRIZZLY 450 height

Adjusting the rear brake lever and brake pedal free play, and the brake
pedal height ............................................ 8-41
Axle boots ................................................ 8-46
Brake light switches ................................. 8-47
Checking and lubricating the cables ........ 8-47
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 ................ 8-50
Lubricating the rear knuckle pivots ........... 8-50
Lubricating the steering shaft ................... 8-51
Battery ...................................................... 8-51
Replacing a fuse ...................................... 8-54
Replacing a headlight bulb ....................... 8-55
Adjusting a headlight beam ...................... 8-57
Replacing the tail/brake light bulb ............ 8-57
Removing a wheel .................................... 8-59
Installing a wheel ...................................... 8-59
Troubleshooting ....................................... 8-61
Troubleshooting charts ............................. 8-62 CLEANING AND STORAGE ..........................9-1
Cleaning ......................................................9-1
Storage .......................................................9-2
SPECIFICATIONS .......................................10-1
CONSUMER INFORMATION.......................11-1 Identification numbers ...............................11-1
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6-8
6

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 reduce
the weight on the hitch. If you are carrying cargo
and towing a trailer, include the tongue weight in
the maximum ATV load limit.

Load cargo on the carriers as close to the center
of the ATV as possible. Put cargo at the rear of
the front carrier, at the front of the rear carrier,
and center it.
Tie down cargo securely to the carriers. Make
sure cargo in the trailer cannot move around. A
shifting load can cause an accident.
Make sure the load does not interfere with con-
trols or your ability to see where you are going.
Ride more slowly than you would without a load.
The more weight you carry, the slower you
should go. Although conditions vary, it is good
practice not to exceed low range whenever you
are carrying heavier loads or when towing a trail-
er.
Allow more braking distance. A heavier ATV
takes longer to stop.
Avoid making sharp turns unless at very slow
speeds.
Avoid hills and rough terrain. Choose terrain
carefully. Added weight affects the stability and
handling of the ATV.
MAXIMUM LOADING LIMIT
ATV loading limit (total weight of rider, cargo,
accessories, and tongue):210.0 kg (463 lb)
Fro nt c arr i er : 40.0 kg (88 lb)
Rear carrier: 80.0 kg (176 lb)
Front storage compartment: 0.5 kg (1 lb)
Rear storage compartment: 2.0 kg (4 lb)
Trailer hitch: Pulling load (total weight of trailer and car-
go):5880 N (600 kgf, 1322 lbf)
Tongue weight (vertical weight on trailer
hitch point): 147 N (15 kgf, 33 lbf)
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8-41
8brake pads for wear and the brake system for leak-
age. If the brake fluid level goes down suddenly,
have a Yamaha dealer check the cause before fur-
ther riding.
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,
have 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.
EBU30342Adjusting 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. No brake lever free play
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8
TIPIf the specified brake lever free play could be ob-
tained as described above, skip steps 3-7.3. Slide the rubber cover back.
4. Loosen the brake cable adjuster locknut.
5. To increase the brake lever free play, turn thebrake lever free play adjusting nut in direction
(a). To decrease the brake lever free play, turn
the adjusting nut in direction (b). NOTICE:
Make sure that distance B measures 22 mm (0.87 in) or less. If the specified free
play cannot be obtained or if distance B
exceeds 22 mm (0.87 in), have a Yamaha
dealer check the vehicle.
[ECB01150]
6. Tighten the brake cable adjuster locknut.
7. Slide the rubber cover to its original position.
8. Tighten the locknut at the brake lever.
Adjusting the brake pedal height
The top of the brake pedal should be positioned
75.0– 85.0 mm (2.95 –3.35 in) above the footboard
bracket. If the brake pedal height is incorrect, ad-
just it as follows.
1. Rubber cover
2. Distance B
3. Brake cable adjuster locknut
4. Brake lever free play adjusting nut
1
2
3
4
(b)(a)
1. Distance between brake pedal and footboard bracket1
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8
1. Remove the footboard by removing the bolts
and nuts.
2. Loosen the locknut. 3. Turn the adjusting bolt in or out until the brake
pedal height is within the specified limits.
4. Tighten the locknut.
5. Install the footboard by installing the bolts and nuts, and then tighten them to the specified
torques.
1. Footboard
2. Bolt22
21
1. Locknut
2. Adjusting boltTightening torque:Locknut:7 Nm (0.7 m ·kgf, 5.1 ft ·lbf)
21
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8Adjusting the brake pedal free play
The brake pedal free play should measure 20.0
mm (0.79 in). If the free play is incorrect, adjust it
as follows.
TIPThe brake lever free play and brake pedal height
must be adjusted before adjusting the brake pedal
free play.1. Loosen the locknut.
1. Footboard bolt A
2. Footboard bolt BTightening torques:Footboard bolt A:4.0 Nm (0.40 m ·kgf, 2.9 ft· lbf)
Footboard bolt B: 7 Nm (0.7 m ·kgf, 5.1 ft ·lbf)11
2
1. Brake pedal free play
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10-1
10
EBU25961
SPECIFICATIONS
Dimensions:Overall length:1993 mm (78.5 in)
Overall width: 1093 mm (43.0 in)
Overall height:
1120 mm (44.1 in)
Seat height: 840 mm (33.1 in)
Wheelbase: 1233 mm (48.5 in)
Ground clearance:
245 mm (9.6 in)
Minimum turning radius: 3000 mm (118 in)Weight:With oil and fuel:
YFM450FAPB 287.0 kg (633 lb)
YFM45FGPB (panel wheel model) 281.0 kg (619 lb)
YFM45FGPB (cast wheel model) 284.0 kg (626 lb)
YFM45FGPHB 281.0 kg (619 lb)Noise and vibration level:Noise level (77/311/EEC):YFM45FGPB 78.3 dB(A)
YFM45FGPHB 78.3 dB(A)
Vibration on seat (EN1032, ISO5008): YFM45FGPB 0.6 m/s ²
YFM45FGPHB 0.6 m/s ² Vibration on handlebar (EN1032, ISO5008):
YFM45FGPB Will not exceed 2.5 m/s ²
YFM45FGPHB Will not exceed 2.5 m/s ²
Engine:Engine type:
Liquid cooled 4-stroke, SOHC
Cylinder arrangement: Forward-inclined single cylinder
Displacement:
421 cm ³
Bore × stroke:
84.5 × 75.0 mm (3.33 × 2.95 in)
Compression ratio: 10.00 : 1
Starting system:
Electric starter
Lubrication system: Wet sumpEngine oil:Recommended brand:
YAMALUBE
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Horn switch .................................................................... 4-7IIdentification numbers .................................................. 11-1
Indicator lights and warning lights .................................. 4-2
Instruments, lights and switches .................................... 5-7LLabel locations ............................................................... 1-1
Light switch .................................................................... 4-7
Low-range indicator light ................................................ 4-2MMain switch .................................................................... 4-1
Maintenance and lubrication chart ................................. 8-5
Maintenance chart, emission control system ................. 8-3
Model label ................................................................... 11-2
Multi-function display ...................................................... 4-5NNeutral indicator light ..................................................... 4-2OOn-Command differential gear lock switch .................... 4-9
On-Command four-wheel-drive switch ........................... 4-8
Override switch .............................................................. 4-7
Owner’s manual and tool kit ........................................... 8-2PPanels, removing and installing ................................... 8-10
Park indicator light .......................................................... 4-3
Parking ........................................................................... 6-5
Parking on a slope ......................................................... 6-6
Part locations ................................................................. 3-1RRear brake, adjusting the lever, pedal free play and
pedal height ............................................................... 8-41
Rear knuckle pivots, lubricating ................................... 8-50 Reverse indicator light .................................................... 4-3
Riding your ATV ............................................................. 7-1
SSafety information .......................................................... 2-1
Seat .............................................................................. 4-18
Shock absorber assemblies, adjusting the front and
rear ............................................................................ 4-22
Spark arrester, cleaning ............................................... 8-33
Spark plug, checking .................................................... 8-14
Specifications ............................................................... 10-1
Speed limiter ................................................................ 4-12
Stabilizer bushes, checking .......................................... 8-50
Starter (choke) ............................................................. 4-18
Start switch ..................................................................... 4-7
Steering shaft, lubricating ............................................. 8-51
Storage ........................................................................... 9-2
Storage compartments ................................................. 4-19TTail/brake light bulb, replacing ..................................... 8-57
Throttle lever ......................................................... 4-12, 5-4
Throttle lever free play, adjusting ................................. 8-37
Tires ............................................................................... 5-4
Troubleshooting ........................................................... 8-61
Troubleshooting charts ................................................. 8-62VValve clearance ............................................................ 8-38
V-belt case drain plug .................................................. 8-35
V-belt cooling duct check hose .................................... 8-35
Vehicle identification number ....................................... 11-1WWheel hub bearings, checking ..................................... 8-49
Wheel, installing ........................................................... 8-59
U1CT61E0.book Page 2 Wednesday, April 20, 2011 6:36 PM