Yamaha YP125R, Service Manual

Page: 186 / 498

FRONT WHEEL
4-11
EAS21890
REMOVING THE FRONT WHEEL
1. Stand the vehicle on a level surface.
WARNING
EWA13120
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
front wheel is elevated.
2. Remove:
• Front wheel
TIP
Do not apply the front brake lever when remov-
ing the front wheel.
EAS21910
DISASSEMBLING THE FRONT WHEEL
1. Remove:
• Oil seal
• Wheel bearings
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a. Clean the surface of the front wheel hub.
b. Remove the oil seal “1” with a flat-head
screwdriver.
TIP
To prevent damaging the wheel, place a rag “2”
between the screwdriver and the wheel surface.
c. Remove the wheel bearings “3” with a gener-
al bearing puller.
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EAS21920
CHECKING THE FRONT WHEEL
1. Check:
• Wheel axle
Roll the wheel axle on a flat surface.
Bends
→
Replace.
WARNING
EWA13460
Do not attempt to straighten a bent wheel ax-
le.
2. Check:
• Tire
• Front wheel
Damage/wear
→
Replace.
Refer to “CHECKING THE TIRES” on page
3-39 and “CHECKING THE WHEELS” on
page 3-41.
3. Measure:
• Radial wheel runout “1”
• Lateral wheel runout “2”
Over the specified limits
→
Replace.
4. Check:
• Wheel bearings
Front wheel turns roughly or is loose
→
Re-
place the wheel bearings.
• Oil seal
Damage/wear
→
Replace.
Radial wheel runout limit
1.0 mm (0.04 in)
Lateral wheel runout limit
0.5 mm (0.02 in)