Repair & Adjustment
There is no adjustment between governor lever and
governor crank on these models. However, governor
action can be changed by inserting governor link or
spring in different holes of governor and throttle levers.
Fig. 6. In general, the closer to the pivot end of the lever,
the smaller the difference between load and no load
engine speed. The engine will begin to "hunt" if the
spring is brought too close to the pivot point. The further
from the pivot end, the less tendency to "hunt" but the
greater the speed drop with increasing load. If the
governed speed is lowered, the spring can usually be
moved closer to the pivot. The standard setting is shown
in Fig. 6.
Fig. 6. Mechanical Governor Linkage
MODELS 6B, 8B, 60000, 80000, 140000 (ALUMINUM)
To service governor, remove crankcase cover. Loosen
the screw on the governor lever and pull lever from
governor crank. Loosen the two mounting screws to
remove gear housing. See Fig. 7. As the housing is
removed, the governor gear will slip off the shaft. There
is a steel thrust washer on the shaft between the gear
and the governor housing.
Fig. 7. Mechanical Governor Parts
To remove governor lever shaft, remove roll pin and
washer. Unscrew governor lever shaft by turning
clockwise. Remove governor lever shaft. Fig. 7.
Push governor lever shaft into crankcase cover, with the
threaded end in. Assemble the small washer on the
inner end of the shaft, then screw the shaft into the
counterclockwise. Tighten securely. Turn the shaft until
follower points down as illustrated, Fig. 8. Place the
washer on the outside end of the shaft. Install roll pin.
The leading end of the pin should just go through the
shaft so the pin protrudes from only one side of the shaft.
Fig. 8. Assembling Mechanical Governor
Place the thrust washer and then the governor gear on
the shaft in the gear housing. Hold crankcase cover in a
vertical (normal) position and then assemble the housing
with gear in position so that the point of the steel cup on
the gear rests against the crank follower. Tighten
housing in place with two mounting screws. See Fig. 8.
Assemble the governor lever to the lever shaft with lever
pointing downward at about a 30° angle. Adjustment will
be made later when carburetor linkage is assembled.