2013 YAMAHA GRIZZLY 450 wheel

8-6
8
4*Brake hoses Check for cracks or other damage, and replace if
necessary. √√√√
Replace. Every 4 years
5 *Wheels Check runout and for damage, and replace if nec-
essary. √ √√√
6 *Tires Check tread depth and for damage, and replace if
necessary.
Check air pressure and balance, and correct if necessary. √ √√√
7 *Wheel hub bearings Check for looseness or damage, and replace if
necessary. √ √√√
8 *V- b e l t Check for wear, cracks or other damage, and re-
place if necessary. √ √√√
9 *Drive shaft univer-
sal joint Lubricate with lithium-soap-based grease.
√√√
10 *Chassis fasteners Make sure that all nuts, bolts, and screws are
properly tightened. √√√√√
11 *Shock absorber as-
semblies Check operation and correct if necessary.
Check for oil leakage and replace if necessary.
√√√
12 *Stabilizer bushes Check for cracks or other damage, and replace if
necessary. √√√
NO. ITEM
CHECK OR MAINTENANCE
JOB INITIAL EVERY
Whichev- er comes first month136612
km
(mi) 320
(200) 1300
(800) 2500
(1600) 2500
(1600) 5000
(3200)
hours 20 80 160 160 320U1CT62E0.book Page 6 Friday, May 11, 2012 9:03 AM

8-39
8
EBU28413Checking the front brake pads and rear
brake friction plates The front brake pads and the rear brake friction
plates must be checked for wear at the intervals
specified in the periodic maintenance and lubrica-
tion chart.TIPThis ATV is equipped with a wet, multiple-disc type
rear brake, which is located inside of the final gear
case.EBU24171Front brake pads
Check each front brake pad for damage and mea-
sure the lining thickness. If a brake pad is dam-
aged or if the lining thickness is less than 1.0 mm
(0.04 in), have a Yamaha dealer replace the brake
pads as a set.
TIPThe wheels need to be removed to check the
brake pads. (See page 8-61.)EBU30320Rear brake friction plates
The rear brake friction plates must be checked
and, if necessary, replaced by a Yamaha dealer at
the intervals specified in the periodic maintenance
and lubrication chart.1. Lining thickness
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8-50
8
EBU24963Checking the wheel hub bearings The front and rear wheel hub bearings must be
checked at the intervals specified in the periodic
maintenance and lubrication chart. If there is play
in a wheel hub or if a wheel does not turn smoothly,
have a Yamaha dealer check the wheel hub bear-
ings.
EBU24972Lubricating the drive shaft universal
joint The drive shaft universal joint must be lubricated at
the intervals specified in the periodic maintenance
and lubrication chart.TIPFor parts equipped with a grease nipple, use a
grease gun.Recommended lubricant:Lithium-soap-based grease
U1CT62E0.book Page 50 Friday, May 11, 2012 9:03 AM

8-55
8
EBU30800Replacing a fuse The main fuse, the EPS fuse, and the fuse box are
located under the seat. (See page 4-18.)
For non-EPS models1. Main fuse
2. Fuse box
3. Spare main fuse
1
2
3
1. Headlight fuse
2. Ignition fuse
3. Auxiliary DC jack fuse
4. Four-wheel-drive motor fuse
5. Signaling system fuse
6. Backup fuse (for clock)
7. Spare fuse
1
2
3
4
5
6
7
U1CT62E0.book Page 55 Friday, May 11, 2012 9:03 AM

8-56
8For EPS models
If a fuse is blown, replace it as follows.1. Turn the key to “OFF” and turn off all electrical circuits.
NOTICEECB00640To prevent accidental short-circuiting, turn off
the main switch when checking or replacing a
fuse.
1. Main fuse
2. Fuse box
3. EPS fuse
4. Spare main fuse
12
3
4
1. Headlight fuse
2. Signaling system fuse
3. Ignition fuse
4. Four-wheel-drive motor fuse
5. Backup fuse (for clock)
6. Auxiliary DC jack fuse
7. Spare fuse
1
2
3
4
5
6
7
U1CT62E0.book Page 56 Friday, May 11, 2012 9:03 AM

8-57
8
2. Remove the blown fuse, and then install a
new fuse of the specified amperage.
WARNING! Always use a fuse of the spec- ified rating, and never use a substitute ob-
ject in place of the proper fuse. An
improper fuse or a substitute object can
cause damage to the electrical system,
which could lead to a fire.
[EWB02172]
Specified fuses: Main fuse:30.0 A
Headlight fuse: 15.0 A
Ignition fuse: 10.0 A
Four-wheel-drive motor fuse: 10.0 A
Signaling system fuse: 10.0 A
Auxiliary DC jack fuse: 10.0 A
Backup fuse: YFM450FAD 10.0 A
YFM450FAPD 5.0 A
YFM45FGD 10.0 A
YFM45FGPAD 5.0 A
YFM45FGPD 5.0 A
YFM45FGPHD 5.0 A
EPS fuse: YFM450FAPD 40.0 A
YFM45FGPAD 40.0 A
YFM45FGPD 40.0 A
YFM45FGPHD 40.0 A
U1CT62E0.book Page 57 Friday, May 11, 2012 9:03 AM

8-61
8
3. Remove the burnt-out bulb by pushing it in
and turning it counterclockwise. 4. Insert a new bulb into the bulb holder, push it
in, and then turn it clockwise until it stops.
5. Install the bulb holder (together with the bulb) by turning it clockwise.
6. Install the tail/brake light assembly by install- ing the washers and the nuts.
EBU25651Removing a wheel 1. Place the ATV on a level surface.
2. Loosen the wheel nuts.
1. Tail/brake light assembly
2. Tail/brake light bulb holder
1. Tail/brake light bulb holder
2. Tail/brake light bulb
U1CT62E0.book Page 61 Friday, May 11, 2012 9:03 AM

8-62
83. Elevate the ATV and place a suitable stand
under the frame.
4. Remove the nuts from the wheel.
5. Remove the wheel.
EBU25701Installing a wheel 1. Place the ATV on a level surface.
2. Install the wheel and the nuts.TIP●The arrow mark on the tire must point toward
the rotating direction of the wheel.
●Tapered nuts are used for both the front and rear
wheels. Install the nuts with their tapered side to-
wards the wheel.
1. Wheel nut
1. Arrow mark
1
U1CT62E0.book Page 62 Friday, May 11, 2012 9:03 AM