KYMCO SUPER8 50 - Cylinder Head Disassembly

7. CYLINDER HEAD/VALVES
7-7
SUPER8 50
CYLINDER HEAD DISASSEMBLY
Remove the valve spring cotters, retainers,
springs, spring seats and valve stem seals
using a valve spring compressor.
Valve Spring Compressor
Valve Spring Compressor Attachment
Remove carbon deposits from the combustion
chamber.
Clean off any gasket material from the
cylinder head mating surface.
INSPECTION
CYLINDER HEAD
Check the spark plug hole and valve areas for
cracks.
Check the cylinder head for warpage with a
straight edge and feeler gauge.
Service Limit: 0.05mm repair or replace if
over
VALVE SPRING FREE LENGTH
Measure the free length of the inner and outer
valve springs.
Service Limits:
Inner : 30.1mm replace if below
Outer : 33.3mm replace if below
Valve Spring Compresso
r
• Be sure to compress the valve springs
with a valve spring compressor.
• Mark all disassembled parts to ensure
correct reassembly.
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Special
Valve Spring Compressor Attachmen
t
Be careful not to damage the cylinde
r
head mating surface.
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