Governor

Michael Beck

Well-known member
Ma family member has a cub they purchased several years ago that has only been used to cultivate garden. Late last summer if the plows were in ground it would go dead from lack of power. We installed an original carb from a known working cub and had the same results. We started looking at it again today and noticed if you move the throttle lever wide open the shaft from the Governor to carb linkage moves toward the front of tractor. If you place the throttle lever at idle it moves toward the rear of tractor. Looking at a known working cub the shaft moved forward at idle and toward the rear at open throttle. Is there something that could have been installed inside the Governor wrong that would cause this. He did say since he has had it there was really no throttle response. He just left the throttle midway and was using it like that until it started stalling and shutting off under a load.
 
Disconnect and check the linkage at the governor where the rod from the hand throttle lever attaches to the small lever (#11 in the attached picture). The lever must move freely on the shaft (#12) from the governor. If it does not move freely on the shaft the governor will not work as it should. If you have a problem with this, lubricate it and carefully free up this linkage. The lever is cast and easily broken by applying too much force. JMHO Stan
 

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Everything has to be just right for the Governor to work properly -- Spark, Carburation, linkage, etc.
Take a look at the attached file. There is good information there, probably more than you need. All the information is from this Forum that I saved.
 

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Very rarely is the problem inside the governor. There are a few basic things you to try before you do anything major. Make sure all of the linkage (from the throttle to the carb is free) Make sure you do not have any long cotter pins causing hang-ups. Since you disconnected and reinstalled the carb, you should adjust the linkage per the manual.
 
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