- 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).
![](https://motoinstruction.ru/img/yamaha/20/126802.jpg)
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 (0.0032 in).
![](https://motoinstruction.ru/img/yamaha/20/126803.jpg)
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).
![](https://motoinstruction.ru/img/yamaha/20/126804.jpg)
4. Check:
- Transmission gear engagement (each pinion gear to its respective wheel gear)
Incorrect → Reassemble the transmission axle assemblies.
5. Check:
- Transmission gear movement. Rough movement → Replace the defective part(s).
6. Check:
- Circlips
Bends/damage/looseness → Replace.