Yamaha F20A Service Manual page 186

POWR
EXPLODED DIAGRAM
Step Procedure/Part name
11 Cylinder body
12 Piston pin clip
13 Piston pin
14 Piston
15 Top piston ring
16 2nd piston ring
17 Oil ring
CRANKCASE, CRANKSHAFT ASSY., AND
CYLINDER BODY
Q'ty
1
4
Not reusable
2
2
2
2
2
Reverse the disassembly steps for instal-
lation.
5-35
Service points
E