5. CYLINDER HEAD/CYLINDER/PISTON
5-8
Place a cleaning cloth onto the crankcase opening
to prevent the piston pin snap ring from falling into
the crankcase.
Apply with two-stroke engine oil onto needle
bearing and piston pin, and then install the piston
pin onto connecting rod. Install piston, and place
“EX” mark of the piston toward to exhaust side.
Install new piston pin snap ring.
Clean all gaskets onto the interfaces of cylinder
and crankcase.
Place a new gasket onto the crankcase.
Make sure that the piston ring aligns with the lock
pin in piston ring groove.
Caution
Make sure that all rings in the piston ring groove
can not be rotated around the lock pin to avoid
to damaging the rings, piston and cylinder.
Lubricate cylinder and piston with two-stroke
engine oil. Hold the piston and then install it into
cylinder.
Caution
To avoid to damaging the piston and the
cylinder sliding surface.
Install the cylinder head.
Lock pin
Piston pin snap ring
Piston pin
Piston
〝EX〞mark
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