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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