Rear Wheel; Removing The Rear Wheel; Checking The Rear Wheel; Disassembling The Rear Wheel - Yamaha WR450FB 2012 Owner's Service Manual

EAS22040

REMOVING THE REAR WHEEL

1. Stand the vehicle on a level surface.
EWA13120
WARNING
Securely support the vehicle so that there is
no danger of it falling over.
TIP
Place the vehicle on a suitable stand so that the
rear wheel is elevated.
2. Elevate:

• Rear wheel

3. Remove:
• Rear wheel axle nut "1"
4. Loosen:
• Locknut "2"
5. Tighten:
• Adjusting bolt "3"
6. Remove:
• Wheel axle
• Rear wheel
TIP
• Push the rear wheel forward and remove the
drive chain from the rear wheel sprocket.
• Do not de pres st the brake pedal when re-
moving the rear wheel.
EAS1DX3143

CHECKING THE REAR WHEEL

1. Check:
• Wheel axle
• Rear wheel
• Wheel bearings
• Oil seals
Refer to "CHECKING THE FRONT WHEEL"
on page 5-6.
2. Check:
• Tire
• Rear wheel
Damage/wear
Refer to "CHECKING THE TIRES" on page
3-22 and "CHECKING THE WHEELS" on
page 3-21.
3. Check:
• Spokes
Refer to "CHECKING THE FRONT WHEEL"
on page 5-6.
4. Measure:
• Radial wheel runout
• Lateral wheel runout
Refer to "CHECKING THE FRONT WHEEL"
on page 5-6.
EAS22080

DISASSEMBLING THE REAR WHEEL

2
1. Remove:
• Oil seals
• Wheel bearings
3
Refer to "DISASSEMBLING THE FRONT
1
WHEEL" on page 5-7.
EAS22120
CHECKING AND REPLACING THE REAR
WHEEL SPROCKET
1. Check:
• Rear wheel sprocket
More than 1/4 tooth "a" wear
drive chain sprocket as a set.
Bent teeth
sprocket as a set.
b. Correct
1. Drive chain roller
2. Rear wheel sprocket
5-11
REAR WHEEL
Replace.
Radial wheel runout limit
2.0 mm (0.08 in)
Lateral wheel runout limit
2.0 mm (0.08 in)
Replace the drive chain
Replace the