Honda G100K2 Applications Manual page 24

OUTPUT CONFIRMATION METHOD
True power output of an engine should be measured on a power bench; a simplified power measurement
method on the application is introduced here.
NOTE
For some engine types, the governor arm movement is opposite
Procedure
Initially, adjust the engine speed to the maximum required speed without load and block the throttle lever in this
position.
Set the throttle valve in the fully closed position; governor arm moved completely to the right.
In this position, place a mark (line) on the governor rod and a mark (line) directly below on the fan cover.
Designate this position as (a).
Set the throttle valve in the fully open position; governor arm moved completely to the left.
Place a mark on the fan cover directly below the mark on the governor rod.
Designate this position as (b).
Finally make a dotted line on the fan cover at the mid-point between (a) and (b).
This position will be the intermediate point (balance between the load and the governor) between the full open
and full close position of the throttle valve (recommended output range).
Output confirmation by the governor rod movement.
Operate the equipment and apply load after sufficient warm-up. If the mark (line) on the governor rod is moving
within the range of the center point ( 6 ) located between the full open position (b) and the full close position
(a), the engine is operating at approximately the recommended rated output.
However, if the speed occasionally drops near the full open position, it is an indication of overloading.
Rated
Control lever
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POWER OUTPUT
Governor rod
Governor arm