Yamaha YZF-R1S Service Manual page 151

FRONT WHEEL AND BRAKE DISCS
4-4
3. Measure:
S radial wheel runout 1
S 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:
S wheel bearings
Front wheel turns roughly or is loose ! Re-
place the wheel bearings.
S oil seals
Damage/wear ! Replace.
5. Replace:
S wheel bearings
New
S oil seals
New
a. Clean the outside of the front wheel hub.
b. Remove the oil seals 1 with a flat-head
screwdriver.
NOTE:
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.
d. Install the new wheel bearings and oil seals
in the reverse order of disassembly.
CAUTION:
Do not contact the wheel bearing inner race
1 or balls 2 . Contact should be made only
with the outer race 3 .
NOTE:
Use a socket 4 that matches the diameter of
the wheel bearing outer race and oil seal.
CHAS