1. Check:
- Clutch plate
Damage → Replace the clutch plates as a set.
2. Measure:
- Clutch plate warpage (with a surface plate and thickness gauge "1").
- Out of specification → Replace the clutch plates as a set.
- Warpage limit 0.10 mm (0.0039 in).
![](https://motoinstruction.ru/img/yamaha/20/126720.jpg)
3. Measure:
- Аssembly width "a" of the friction plates and clutch plates
Out of specification → Adjust.
Assembly width 42.4-43.0 mm (1.67-1.69 in).
Perform the thickness measurement without applying the oil.
This step should be performed only if the friction plates and clutch plates were replaced.
To measure the total width of the friction plates and clutch plates, combine 9 friction plates and 8 clutch plates as shown.
![](https://motoinstruction.ru/img/yamaha/20/126721.jpg)
a. Assembly width adjusted by clutch plate "1" and "2".
b. Select the clutch plate from the following table.
Clutch plate "1" | ||
Part No. | Thickness | |
4B1-16324-00 | 1.6 mm (0.063 in) | |
5VY-16325-00 | 2.0 mm (0.079 in) | STD |
4B1-16325-00 | 2.3 mm (0.091 in) |
Clutch plate "2" | ||
Part No. | Thickness | |
5VY-16325-00 | 2.0 mm (0.079 in) | STD |
4B1-16325-00 | 2.3 mm (0.091 in) |
When adjusting the clutch assembly width [by replacing the clutch plate(s)], be sure to replace the clutch plate "1" fast.
After replacing the clutch plate "1", if specifications cannot be met, replace the clutch plate "2".
![](https://motoinstruction.ru/img/yamaha/20/126722.jpg)