Cylinder Head Installation - Sym HD2 125 Service Manual

7. CYLINDER HEAD / VALVE

Cylinder Head Installation

Install a new O-ring into the indent of carburetor
insulator, and then install the insulator onto
cylinder head with 2 bolts.
Install camshaft into cylinder head, and align
rocker pin with rocker arm pin hole. Then, insert
the rocker arm pin.
Install rocker arm pin mounting plate.
Clean up all residues and foreign materials onto
the matching surfaces of both cylinder and
cylinder head.
Install chain guide.
Install 2 set pins and cylinder head gasket.
Caution
Do not damage the matching surfaces of cylinder
and cylinder head.
Avoid residues of gasket or foreign materials
falling into crankcase as cleaning.
Loosen the tensioner by turning a flat-driver in
C.W direction.
Install cylinder head.
7-12
To this chapter contents
Chain guide
Carburetor insulator
Stopper plate bolt
Dowel pin
Gasket