Yamaha YZ Serie Fahrer- Und Wartungshandbuch Seite 244

CYLINDER HEAD, CYLINDER AND PISTON
EC478100
PISTON AND POWER VALVE
4 Nm (0.4 m•kg, 2.9 ft•lb)
8 Nm (0.8 m•kg, 5.8 ft•lb)
4 Nm (0.4 m•kg, 2.9 ft•lb)
4 Nm (0.4 m•kg, 2.9 ft•lb)
Extent of removal:
Extent of removal Order
1
2
1 Piston and piston ring removal
Part name
PISTON AND POWER VALVE
REMOVAL
1 Piston pin clip
2 Piston pin
3 Piston
4 Small end bearing
5 Piston ring
6 Power valve cover
7 Thrust plate
8 Bolt (link lever)
9 Valve shaft
10 Collar
11 Link lever
12 Spring
13 Power valve 1
14 Power valve 2
2 Power valve removal
Q'ty
ü ü
2
ï ï
1
ï ï
ý ý
1 Refer to "REMOVAL POINTS".
ï ï
1
ï ï
1 þ þ
1
1
1
1
2
1
2
1
1
4-18
ENG
Remarks