SINGLE-CYLINDER
ENGINES
H---l
1"!I---2
~1G...t--3
~--4
~-5
6
!-7
77
VALVE
COMPONENTS
1. Wear cap
2. Keys
3. Valve spring retainer
4. Valve spring
5. Valve seal
6. Valve guide
7. Valve
VALVES AND VALVE SEATS
Servicing the valves, guides and valve seats must be
done by a dealer or machine shop, as special knowledge
and expensive machine tools are required.
A general practice among those who do their own ser-
vice is to remove the cylinder head, perform all disassem-
bly except valve removal and take the head to a dealer or
machine shop for inspection and service. Since the cost is
low relative to the required effort and equipment, this is
usually the best approach, even for experienced mechan-
ics. The following procedures are providedto acquaint the
home mechanic with the procedure.
Valve
Removal
Refer to
Figure
22.
1. Remove the cylinderhead as described in this chapter.
2. Remove the rocker shaft assembly as described in this
chapter.
3. Remove the wearcap (1,
Figure
22) on the valve stem.
4. Compress the valve spring with a compressor like the
one shown in
Figure
23.
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