Yamaha YZ125 Manuel D'atelier Du Proprietaire page 250

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)
5 Nm (0.5 m•kg, 3.6 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 holder
10 Valve shaft
11 Collar
12 Link lever
13 Spring
14 Power valve 1
15 Power valve 2
2 Power valve removal
Q'ty
 
2
 
1  
 
1 Refer to "REMOVAL POINTS".
 
1
 
1
 
1
1
1
1
1
2
1
2
1
1
4-18
ENG
Remarks