6. CYLINDER HEAD/VALVE
6-6
Remove the 2 cylinder head mounting bolts from
cylinder head right side, and then remove 4 nuts
and washers from cylinder head upper side.
Remove the cylinder head.
Remove cylinder head gasket and 2 dowel pins.
Remove chain guide.
Clean up residues from the matching surfaces of
cylinder and cylinder head.
Caution
Do not damage the matching surfaces of
cylinder and cylinder head.
Avoid residues of gasket or foreign materials
falling into crankcase as cleaning.
Use a valve cotter remove & assembly tool to
press the valve spring, and then remove valves.
Caution
In order to avoid loosing spring elasticity, do not
press the spring too much. Thus, press length
is based on the valve cotter in which can be
removed.
Special Service Tool:
Tool no: SYM-1471110/20-4v
TOOL number: valve cotter remove &
assembly tool
4 Nuts
2 bolts
Spring retainer
Cotter
Exhaust valve
Dowel pins
Gasket
Chain guide
Valve cotter remove
and assembly tool
Inner spring
Outer spring
Inlet valve
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