CYLINDER HEAD
64
4. Insert the push rods.
5. Install the rocker arms.
6. Adjust the valve lash by following the steps
described in Chapter 1: Introduction.
7. Install the throttle lever and the heat baffle.
8. Install the muffler by following the steps
described in Chapter 8: Exhaust.
9. Install the carburetor and engine shroud, using
new gaskets, by following the steps described in
Chapter 3: Air Intake
10. Test run the equipment in a safe area before
returning it to service. Check all safety features.
Valves
The valves and valve seats can be serviced by
grinding and lapping or the head can be replaced.
Depending on local machine and labor costs, it is prob
-
ably more economical to replace the cylinder head ver-
sus servicing the valves.
To service the valves:
NOTE: Servicing valves during the warranty
period will void the warranty. Warranty valve
repairs are to be accomplished by replacing the
cylinder head.
1. Remove the cylinder head by following the steps
described earlier in this chapter.
2. Remove the rocker arms by:
2a. Remove the jam nuts.
2b. Remove the fulcrum nut.
2c. Slide the rocker arms off of the rocker studs.
3. Remove the valve retainers by applying light fin-
ger pressure and moving the retainer so that the
valve stem passes through the large part of the
“keyhole” opening in the retainer.
See Figure 9.10.
NOTE: The valve keepers are not interchange-
able.
Figure 9.10
Press down
and slide off
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