Yamaha YZF-R1S Service Manual - Eng
5-104
TRANSMISSION
ENG
WARNING
2. Check:
Sshift 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:
Sshift 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:
Sshift drum grooves
1
Damage / scratches / wear
! Replace the
shift drum assembly.
Sshift drum segment
2
Damage / wear
! Replace the shift drum as-
sembly.
Sshift drum bearing
3
Damage / pitting
! Replace the shift drum
assembly.
EAS00425
CHECKING THE TRANSMISSION
1. Measure:
Smain 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)