Yamaha YZ250 2022, Owner'S Service Manual

Page: 102 / 274

REAR WHEEL
4-8
EAM30022
REMOVING THE REAR WHEEL
1. Use a maintenance stand to raise the rear
wheel off the ground.
WARNING
EWA13120
Securely support the vehicle so that there is
no danger of it falling over.
2. Remove:
•
Rear wheel axle nut “1”
3. Loosen:
•
Locknut “2”
4. Tighten:
•
Adjusting bolt “3”
5. Remove:
• Rear wheel axle
•
Rear wheel
TIP
• Push the rear wheel forward and remove the
drive chain from the rear wheel sprocket.
• Do not depress the brake pedal with the rear
wheel removed.
EAM30024
DISASSEMBLING THE REAR WHEEL
1. Remove:
•
Oil seal
• Bearing
Refer to “DISASSEMBLING THE FRONT
WHEEL” on page 4-4.
EAM30023
CHECKING THE REAR WHEEL
1. Check:
•
Rear wheel axle
• Rear wheel
•
Bearing
• Oil seal
Refer to “CHECKING THE FRONT WHEEL”
on page 4-4.
2. Check:
• Tire
•
Rear wheel
Damage/wear

Replace.
Refer to “CHECKING THE TIRES” on page
3-23 and “CHECKING THE WHEELS” on
page 3-23.
3. Check:
•
Spoke
Refer to “CHECKING AND TIGHTENING
THE SPOKES” on page 3-23.
4. Measure:
•
Radial wheel runout
• Lateral wheel runout
Refer to “CHECKING THE FRONT WHEEL”
on page 4-4.
EAM30025
CHECKING AND REPLACING THE REAR
WHEEL SPROCKET
1. Check:
•
Rear wheel sprocket
More than 1/4 tooth wear “a”

Replace the
rear wheel sprocket and the drive sprocket as
a set.
Bent tooth

Replace the rear wheel sprock-
et and the drive sprocket as a set.
2. Replace:
•
Rear wheel sprocket
a. Remove the self-locking nuts and the rear
wheel sprocket.
b. Clean the rear wheel drive hub with a
clean cloth, especially the surfaces that
contact the sprocket.
c. Install the new rear wheel sprocket.
1
2
3
Radial wheel runout limit
2.0 mm (0.08 in)
Lateral wheel runout limit
2.0 mm (0.08 in)
b. Correct
1. Drive chain roller
2. Rear wheel sprocket
Rear wheel sprocket nut
42 N·m (4.2 kgf·m, 31 lb·ft)
G088904
T
R
.
.