run flat YAMAHA YZF-R1SC 2004 Service Manual

4-4
FRONT WHEEL AND BRAKE DISCSCHAS
NOTE:
CAUTION:
NOTE:
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
Re-
place the wheel bearings.

oil seals
Damage / wear
Replace.
5. Replace:

wheel bearings
New

oil seals
New
a. Clean the outside of the front wheel hub.
b. Remove the oil seals
1 with a flat-head
screwdriver.
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.
Do not contact the wheel bearing inner race
1 or balls 2. Contact should be made only
with the outer race
3.
Use a socket
4 that matches the diameter of
the wheel bearing outer race and oil seal.
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5-104
TRANSMISSIONENG
WARNING
2. Check:

shift fork guide bar
Roll the shift fork guide bar on a flat surface.
Bends
Replace.
Do not attempt to straighten a bent shift fork
guide bar.
3. Check:

shift fork movement
(along the shift fork guide bar)
Rough movement
Replace the shift forks
and shift fork guide bar as a set.
EAS00422
CHECKING THE SHIFT DRUM ASSEMBLY
1. Check:

shift drum grooves
1
Damage / scratches / wear
Replace the
shift drum assembly.

shift drum segment
2
Damage / wear
Replace the shift drum as-
sembly.

shift drum bearing
3
Damage / pitting
Replace the shift drum
assembly.
EAS00425
CHECKING THE TRANSMISSION
1. Measure:

main axle runout
(with a centering device and dial gauge
1)
Out of specification
Replace the main
axle.
Main axle runout limit
0.08 mm (0.0032 in)
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