120
Û
120
Û
120
Û
b
c
a
d
e
f
f
New
INSTALLING THE PISTON
1. Install:
• piston rings
(onto the piston)
TIP
• Be sure to install the piston rings so that the
manufacturer’s marks or numbers are
located on the upper side of the rings.
• Lubricate the piston and piston rings liberally
with engine oil.
2. Position:
• top ring
• 2nd ring
• oil ring
Offset the piston ring end gaps as shown.
top ring end
upper oil ring rail end
expander end
lower oil ring rail end
2nd ring end
20 mm (0.79 in)
3. Install:
• piston
• piston pin
• piston pin clips
TIP
• Apply engine oil onto the piston pin, piston
rings and piston.
• Be sure that the “ IN ” mark
on the piston
points to the intake side of the engine.
• Before installing the piston pin clips, cover
the crankcase with a clean rag to prevent the
piston pin clips from falling into the crank-
case.
4. Lubricate:
• piston
• piston rings
• cylinder
TIP
Apply a liberal coating of engine oil.
New
b
c
a
d
e
f
b
a
b
a
a
IN
a
ENG
4 - 26
CYLINDER AND PISTON
