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6. Turn engine ignition off and wait for engine to come to complete stop. Disable
and lock out any remote start.
7. Loosen the lock nut on the high-speed stop screw.
8. Turn the high-speed stop screw counterclockwise a 1/4 of a turn to increase the
speed or turn the high-speed screw clockwise a 1/4 of a turn to decrease the
speed.
9. Restart the engine. Slowly increase the throttle to maximum no load engine
speed.
NOTE: Do not exceed maximum RPM recommended by the equipment
manufacturer.
10.Check RPM. If not at desired speed, repeat steps 5 through 10.
Spread Adjustment
The next adjustment is for spread.
Proper governor operation requires a
difference between full-load and no-
load governor speed. Too small an
rpm spread between the two speeds
will cause governor hunting and
surging. Too large a spread will cause
the low response. For this governor,
normal rpm spread is approximately
250 rpm within the full load speed
range of 2000-2800 rpm.
To increase the rpm spread, adjust the
screw to move the spring away from
the lever hub. To decrease the rpm
spread, adjust the screw to move the
spring closer to the lever hub.
No-Load Surge Adjustment
The no-load surge adjustment is set at the factory and rarely requires adjustment.
If necessary, this adjustment can be used to prevent hunting and surging at no-load
speeds only, provided the rpm spread adjustment is set properly. Make the
adjustment with the tachometer installed. Increase the engine speed with the hand
throttle to 75 rpm lower than the maximum no-load desired control rpm.
NOTE: At this point if the engine continues to surge, apply light pressure to
governor throttle lever. If the surges are dampened then loosen the no-load surge
adjustment screw locknut and turn the screw inward until the rpm increases to the
desired control rpm. Reset high speed adjustment screw and tighten locknuts.
CAUTION: Do not turn the no-load surge screw in all the way. It will interfere
with proper governor operation and prevent the governor from returning the
engine to idle speed.
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