Yamaha TZ250M1, Owner'S Service Manual

Page: 117 / 287

CYLINDER HEAD, CYLINDER AND PISTON
4-19
ENG
EC478100
PISTON AND POWER VALVE
Extend of removal:
1
Piston and piston ring removal
2
Power valve removal
Extend of removal Order Part name Q’ty Remarks
PISTON REMOVAL
1 Piston pin clip 2ea.
2 Piston pin 1ea.
3 Piston 1ea. Refer to “REMOVAL POINTS”.
4 Small end bearing 1ea.
5 Piston ring 1ea.
6 Valve cover 1ea.
7 Valve shaft 1ea.
8 Power valve 1ea.
9 Valve pulley 1ea.
10 Circlip 2ea.
11 Plain washer 2ea.
12 Oil seal 2ea.
13 Solid bush 2ea.
T
12 Nm (1.2 m
d
kg, 8.7 ft
d
lb)
T
4 Nm (0.4 m
d
kg, 2.9 ft
d
lb)
T
9 Nm (0.9 m
d
kg, 6.5 ft
d
lb)
T
4 Nm (0.4 m
d
kg, 2.9 ft
d
lb)
1
2