8. CYLINDER/PISTON
8-10
PISTON INSTALLATION
Remove any gasket material from the
crankcase surface.
Install the piston, piston pin and a new
piston pin clip.
CYLINDER INSTALLATION
Install the dowel pins and a new cylinder
gasket on the crankcase.
Coat the cylinder bore, piston and piston
rings with clean engine oil.
Carefully lower the cylinder over the piston
by compressing the piston rings.
• Apply proper clean engine oil around
cylinder wall.
• Be careful not to damage or break the
piston rings.
• Stagger the ring end gaps at 120° to the
piston pin.
＊
Be careful not to drop foreign matters
into the crankcase.
＊
• Position the piston “IN” mark on the
intake valve side.
• Place a clean shop towel in the
crankcase to keep the piston pin clip
from falling into the crankcase.
＊
“IN” Mark
IN
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