Sym JD05W User Manual

6. Cylinder Head/Cylinder/Piston
6-4
Remove engine shield.
Cylinder Head Removal
Remove spark plug.
Remove the 4 cylinder head bolts and then
remove the cylinder head.
Caution
Loosen the cylinder head bolts with diagonal
direction to avoid to damaging it.
Cleaning Carbon in Combustion Chamber
Clean carbon deposit in which built up in
combustion chamber with shown chisel.
Caution
Do not scratch to the interfaces of combustion
chamber and cylinder.
Cylinder Head Inspection
Use a straight edge and a feeler gauge to
measure the cylinder head for warp.
Cylinder Head Installation
Replace the cylinder head gasket with new one,
and place the cylinder head onto cylinder.
Tighten the 4 bolts with diagonal direction and by
2-3 sequences.
Tighten torque: 1.6~2.0kgf-m
Install spark plug
Tighten torque: 1.1~1.7kgf-m
4 bolts
Chisel

Sym JD05W Specifications

General

Brand	Sym
Model	JD05W
Category	Scooter
Language	English