Sym RS-50 Service Manual page 52

Cylinder/Piston
Cylinder Removal
Be careful to pull the cylinder up and prevent
piston from damage.
Caution
Do not have pry out operation between cylinder
and crankcase. Or let radiation fan be
knocked seriously.
Piston Removal
Place a clean rag onto crankshaft to cover the
piston.
Remove piston pin clip (one piece) and then push
piston pin out the piston.
Caution
Do not damage or scratch the piston.
Do not apply with lateral force to connecting
rod.
Do not let piston pin snap ring falling into
crankcase.
Piston Ring Removal
Caution
Pry out the opening end of each piston ring and
then remove the ring from piston.
Check if cylinder and piston are worn or damaged,
and then clean carbon deposit on exhaust opening
area as the diagram shown.
Caution
Do not scratch both the cylinder and the piston.
This chapter Contents
5. CYLINDER HEAD/CYLINDER/PISTON
Piston pin clip
Piston pin
Piston
5-5