- Rear wheel sprocket
More than 1/4 tooth "a" wear → Replace the drive chain sprockets as a set.
Bent teeth → Replace the drive chain sprockets as a set.
![](https://motoinstruction.ru/img/yamaha/20/126439.jpg)
b. Correct
1. Drive chain roller
2. Rear wheel sprocket
2. Replace:
- Rear wheel sprocket
a. Remove the self-locking nuts and the rear wheel sprocket.
b. Clean the rear wheel drive hub with a clean cloth, especially the surfaces that contact the sprocket.
c. Install the new rear wheel sprocket.
Rear wheel sprocket self-locking nut 100 Nm (10 mr·kgf, 72 ft·lbf).
Tighten the self-locking nuts in stages and in a crisscross pattern.
![](https://motoinstruction.ru/img/yamaha/20/126440.jpg)