Yamaha YBR125ED 2005 Service Manual page 107

FRONT WHEEL AND BRAKE DISC
4 - 4
3. Measure:
• radial wheel runout 1
• lateral wheel runout 2
Over the specified limits → Replace.
Radial wheel runout limit
1.0 mm (0.04 in)
Lateral wheel runout limit
0.5 mm (0.02 in)
4. Check:
• wheel bearings
Front wheel turns roughly or is loose →
Replace the wheel bearings.
• oil seals
Damage/wear → Replace.
5. Replace:
• wheel bearings
New
• oil seal
New
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a. Clean the outside of the front wheel hub.
b. Remove the oil seal 1 with a flat-head
screwdriver.
NOTE:
_
To prevent damaging the wheel, place a rag 2
between the screwdriver and the wheel sur-
face.
c. Remove the wheel bearings 3 with a gen-
eral bearing puller.
d. Install the new wheel bearings and oil seal
in the reverse order of disassembly.
CAUTION:
_
Do not contact the wheel bearing inner race
4 or balls 5. Contact should be made only
with the outer race 6.
NOTE:
_
Use a socket 7 that matches the diameter of
the wheel bearing outer race and oil seal.
L LLL L LLL L L LLL L
CHAS
M MMM M M MMM M M MMM M
L LLL L L LLL L L LLL L
MMM
LLL