Disconnect The Engine; Cylinder Head, Cylinder And Piston - Jianshe JS125-6B Maintenance Manual

Disconnect the engine

Cylinder head, cylinder and piston

1. Disassemble
Spark plug
2. Disassemble
Intake tube (the connecting hose joint the cylinder
and the carburetor)
3. Disassemble
Hole cover ,
4. Disassemble
Valve cover (intake)
Valve cover (exhaust)
5. Disassemble
The side cover of the cylinder head
6. Timing adjustment
Aim mark on the rotor at the fixed needle
pointer on the crankcase cover.
******************************************
Timing adjustment steps
Turn the crankcase anticlockwise with spanner.
Aim mark
pointer on the crankcase. When
in alignment with the fixed needle pointer, the piston
locates at the top dead center (T, D, C).
In the meantime, the calibration mark
chain sprocket is in alignment with the one
fixed needle pointer, the rock arm on both side must
form a valve clearance.
If no valve clearance, turn the crankcase anticlockwise
to meet above requirements.
******************************************
56
ENGINE
on the rotor at the fixed needle
mark is
on the cam
on the