Sym Jet 50 Service Manual page 54

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