4-1
SeCTIoN 4: GoverNor CoNTrolS ANd GoverNor
MeCHANICAl GoverNor
DISASSEMBLE:
1. Drain the oil from the engine.
2. Remove any rust, nicks, or burrs from the crankshaft.
3. Remove the four (4) oil cooler screws.
4. Disconnect the wiring from the oil pressure switch.
5. Remove the governor lever from the shaft.
6. Separate the ball joint on the swinging arm.
7. Remove all of the crankcase bolts and slide the crank-
case cover off.
Note: Watch the swinging arm bracket so that it doesn't
hook on the sheet metal.
8. Discard the crankcase gasket & oil passage o-ring.
GoverNor
Both the spool and the flyweights must move freely for
the governor to work properly. Check for wear on the spool
and flyweights. If wear is noticed, change the governor gear
assembly (gear and flyweights), spool, and governor arm.
Lubricate all moving parts when reassembling.
GOVERNOR REMOVAL AND INSTALLATION:
1. Leverage gear assembly and governor spool off of
governor shaft.
GOVERNOR GEAR ASSEMBLY
GOVERNOR
SPOOL
OIL
PASS
AGE
O-RING
Figure 4-1. Governor Gear Assembly and Spool
2. Remove any remaining plastic from the notch in the
governor shaft.
3. Check that all the governor bearing parts (top plate,
bearing, and bottom plate) are on the shaft, and that it
moves smoothly.
4. Slide the new gear assembly and spool onto the governor
shaft. Slide until the gear hooks into the notch in the
governor shaft.
SPOOL
GOVERNOR SHAFT
THRUST WASHERS
THRUST BEARING
GOVERNOR GEAR AND
FLYWEIGHT ASSEMBLY
GOVERNOR ASSEMBLY
Figure 4-2. Governor Assembly and Components
4
Summary of Contents for GTH760
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