Yamaha 2004 Rhino 660 YXR660FAS Service Manual page 168

CYLINDER AND PISTON
2. Position:
• top ring
• 2nd ring
• oil ring
Offset the piston ring end gaps as shown.
a Top ring end
b Upper oil ring rail end
C Oil ring expander end
d Lower oil ring rail end
e 2nd ring end
f 20 mm (0.79 in)
3. Install:
• piston 1
• piston pin 2
• piston pin clips 3
NOTE:
• Apply engine oil onto the piston pin, piston
rings and piston.
• Be sure that the arrow mark a on the piston
points to the exhaust side of the engine.
• Before installing the piston pin clip, cover the
crankcase with a clean rag to prevent the
piston pin clip from falling into the crankcase.
4. Lubricate:
• piston
• piston rings
• cylinder
NOTE:
Apply a liberal coating of engine oil.
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ENG
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