Yamaha TW200 Service Manual page 139

ENGINE ASSEMBLY AND ADJUSTMENT
I
ENG
1'.1
--------------------------
PISTON AND CYLINDER
CD
Cylinder
®
Gasket (Cylinder)
®
Piston ring (Top)
(j])
a-ring (Cylinder)
®
Piston ring (2nd)
@
Clutch cable holder
@
Oil ring
®
Piston
@
Piston pin
Q)
Piston pin clip
@
O-ring
®
Dowel pin
PISTON RING END GAP:
A Top: 0.15-0.30 mm (0.006-0.012 in)
2nd: 0.15-0.30 mm (0.006-0.012 in)
Oil: 0.3-0.9 mm (0.012-0.035 in)
PISTON RING SIDE CLEARANCE:
B Top: 0.03-0.07 mm (0.001-0.003 in)
2nd: 0.02-0.06 mm (0.001-0.002 in)
1
m
5
E USE NEW ONE
4-59
CYLINDER BORE SIZEl
MESURING POINT:
C 66.97-67.02 mm (2.637-2.639 in)/
40 mm (1.6 in)
<LIMIT>:
<67.1 mm (2.642 in»
10 Nm (1.0 m-kg, 7.2 ft-Ib)
PISTON-TO-CYLINDER CLEARANCE:
o
0.025-0.045 mm (0.001-0.002 in)
<LIMIT>:
<0.1
mm
(0.004 in»