THE FUEL SYSTEM AND GOVERNOR
38
Governor cup and the governor gear
To remove or replace the governor gear and cup:
1. Remove the engine from the unit.
2. Remove the governor arm by following the previ-
ously described steps.
3. Remove the flywheel by following the steps
described in Chapter 7: Ignition Systems.
4. Remove the sump and crankshaft by following
the steps described in Chapter 10: Cam, Crank
-
shaft and Piston.
5. Drive out the governor gear shaft using a 5/32”
pin punch.
See Figure 4.29.
NOTE: If the engine is equipped with an altena-
tor, remove the stator for easier access to the
shaft.
See Figure 4.30.
Figure 4.29
Governor gear shaft
Figure 4.30
Remove the
stator
Gear shaft
6. Slide the shaft out of the gear and cup. See
Figure 4.31.
NOTE: A second thrust washer goes between
the governor gear and the cylinder block. Make
sure it is in place when installing the governor
gear.
See Figure 4.32.
7. Install the governor gear and cup by following
the above steps in reverse order.
NOTE: Check the governor arm for freedom of
movement before test running the engine.
8. Test run the engine and adjust the top no load
engine rpms by following the steps described in
“Disassembly and rebuilding the carburetor” sec
-
tion of this chapter.
Figure 4.31
Governor gear
Governor cup
Gear shaft
Washer
Figure 4.32
Thrust washer
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