Checking The Shift Drum Assembly; Checking The Transmission - Yamaha YZF-R1P Service Manual

TRANSMISSION
EAS00422

CHECKING THE SHIFT DRUM ASSEMBLY

1. Check:
• shift drum grooves
Damage/scratches/wear → Replace the
shift drum assembly.
• shift drum segment 1
Damage/wear → Replace the shift drum
assembly.
• shift drum bearing 2
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 (0.0031 in)
2. Measure:
• drive axle runout
(with a centering device and dial gauge 1)
Out of specification → Replace the drive
axle.
Drive axle runout limit
0.08 mm (0.0031 in)
3. Check:
• transmission gears
Blue discoloration/pitting/wear → Replace
the defective gear(s).
• transmission gear dogs
Cracks/damage/rounded edges → Replace
the defective gear(s).
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