Posted by Steve@Advance on June 02, 2014 at 20:43:49 from (107.203.134.67):
In Reply to: Re: Governor to Carb posted by JamesKS on June 02, 2014 at 19:54:47:
There should be an idle stop screw on the carb throttle plate. Sounds like it is backed out too far if it's not idling. The governor does not set the idle speed, that's what the throttle stop screw is for.
The throttle is linked directly to the governor arm. The arm without a spring connects to the carb. The arm with the spring connects to the speed selector linkage from the lever on the dash.
In theory, the spring wants to pull the throttle open, the weights in the governor want to push the throttle closed.
Once you get the carb adjusted where it will idle, with the dash lever set to the idle position, engine running, the governor should hold the throttle plate closed against the stop screw on the carb. If the throttle is not closing against the stop, lengthen the linkage between the gov and carb until it does.
With the engine off, push the dash lever to the fast position. The carb throttle plate should be wide open. If not adjust the stop screw on the gov until it is. You should be able to pull the throttle closed with moderate finger pressure. It should move smoothly closed and spring open when released.
Return the speed lever to idle and start the engine. Push the lever to wide open position, The engine should accelerate rapidly up to 2200 RPM and level off.
Surging speed is a sign of too lean, black smoke is too rich.
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