Yamaha Tracer MT09TRAH 2017 Service Manual page 331

EAS30432
CHECKING THE SHIFT DRUM ASSEMBLY
1. Check:
• Shift drum groove
Damage/scratches/wear  Replace the shift
drum assembly.
• Shift drum segment "1"
Damage/wear  Replace the shift drum as-
sembly.
• Shift drum bearing "2"
Damage/pitting  Replace the shift drum as-
sembly.
EAS30433
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)
2. Measure:
• Drive axle runout
(with a centering device and dial gauge "1")
3. Check:
• Transmission gears
• Transmission gear dogs
4. Check:
• Transmission gear engagement
5. Check:
• Transmission gear movement
6. Check:
1
• Circlips
EAS30435
ASSEMBLING THE MAIN AXLE AND DRIVE
AXLE
1. Install:
• Toothed washer "1"
• Circlip "2"
TIP
• Be sure the circlip sharp-edged corner "a" is
5-82
TRANSMISSION
Out of specification  Replace the drive axle.
Drive axle runout limit
0.08 mm (0.0032 in)
1
Blue discoloration/pitting/wear  Replace
the defective gear(s).
Cracks/damage/rounded edges  Replace
the defective gear(s).
(each pinion gear to its respective wheel
gear)
Incorrect  Reassemble the transmission
axle assemblies.
Rough movement  Replace the defective
part(s).
Bends/damage/looseness  Replace.
New