Sym PA12B User Manual

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7. Cylinder Head / Valve
Cylinder Head Assembly
7-14
Install the valve by using valve installer or
valve spring compressor.
Special tool：
Valve remove / install tool SYM-1471120
Valve spring compressor SYM-1471100
Caution
z In order to avoid damaging the valve
stem and the cylinder head, in the
combustion chamber place a rag
between the valve spring
remover/installer as compressing the
valve spring directly.
Lubricate valve stem with engine oil, and then
insert the valve into valve guide.
Install new valve stem oil seal.
Install valve springs and retainers.
Caution
z The closed coils of valve spring should
face down to combustion chamber.
Tap the valve stems gently with a plastic
hammer to make sure valve retainer and valve
cotter is settled.
Caution
z Place and hold cylinder head on to
working table so that can prevent from
valve damaged.
Valve cotter
Valve stem
seal
Valve spring
retainer
Install camshaft into cylinder head.
Install valve rocker arm, rocker arm shaft and
rocker arm shaft setting plate.
Torque value：0.8~1.2kgf-m
Valve spring
Valve
Bolt×1

Sym PA12B Specifications

General

Brand	Sym
Model	PA12B
Category	Motorcycle
Language	English