Note: When installing the middle gear assembly, be sure to replace the following parts: collapsible collar
1. Install: middle driven shaft assembly (1): 25 Nm (2.5 m·kg)
![](https://motoinstruction.ru/img/yamaha/16/122415.jpg)
2. Install:
- shim
- middle drive shaft assembly
3. Install: bearing retainer
Install steps:
Attach the bearing retainer wrench (1).
![](https://motoinstruction.ru/img/yamaha/16/122416.jpg)
Tighten the bearing retainer.
- Bearing retainer: 110 Nm (11.0 m·kg)
Lock the threads on the bearing retainer by staking them with a center punch.
4. Adjust: middle gear backlash
- Middle gear backlash: 0.1-0.2 mm
a. Install the universal joint holder (1) and middle gear backlash band (2) as shown.
![](https://motoinstruction.ru/img/yamaha/16/122417.jpg)
- Universal joint holder: 90890-04062
- Middle gear backlash band: 90890-01231
b. Make sure that the dial gauge plunger on the middle gear backlash band as shown.
![](https://motoinstruction.ru/img/yamaha/16/122418.jpg)
(a) Dial-gauge-plunger contact point: 68.2 mm
c. Remove the middle driven pinion gear nut and apply the LOCKTITE® on it.
d. Reinstall the middle driven pinion gear nut.
e. While measure the middle gear backlash, tighten the middle driven pinion gear nut until specific backlash.
Caution! Do not over tighten the middle driven pinion gear nut. If over tighten the middle driven pinion gear nut, replace the collapsible collar and adjust the backlash.
f. Stake the middle driven pinion gear shaft thread.