Service manual

Cylinder Assembly 7
54
Disassemble the cylinder
Remove the cylinder head for the steps as follows:
A. Sequentially take out parts such as chain guide,
cylinder, cylinder gasket, and dowel pins.
B. Use the long nose pliers to take out parts such as
C-ring, piston pin, and piston.
C. Notice notches during installation of the piston ring.
1. Notches of the first & third rings must avoid the spark
plug and the shock surface. Direction: Upper left
cylinder column.
2. Notches of the second & fourth rings must avoid the
shock surface; an included angle is developed
between the first & third rings and the second &
fourth rings. Direction: Upper right cylinder column.
Shock surface: Piston exhaust
鏈條導件
Cylinder
Cylinder gasket
Dowel pin
Shock surface
“IN” up
Piston Piston pin
C-ring
Check the angle to install an oil scraper ring of the piston ring and
keep an angle of 120 degrees without the oil scraper ring aligned with
the piston pin prior to assembly of a cylinder.
N
otch of 2nd &
4th rings
N
otch of 1st & 3rd
rings
“IN” for air inlet
Chain guide