I thought of the governor, and last fall I had a guy adjust that for me because it was idling too fast and could not be slowed down. He adjusted it, and it worked well after.
During the winter, the tractor quit running when I was pushing a round bale. It turned out that the screw fell out of the choke plate and got sucked into the engine. At that time I removed the carb and got a screw for it. While doing that, I opened the carb to clean it. No one had the carb kit locally, so I just cleaned the bowl, sprayed what I could with carb cleaner, and replaced the bowl and manifold gaskets. This was when I found that bracket broken, and had it welded as best as possible.
It has not run quite right since, but is usable. However that surging comes and goes. No carb adjustments seem to help. It acts like it"s running out of gas about once every 2 seconds. Yet at other times it runs fine, but suddenly it will start surging again, especially when I drive over bumps or go down a hill. Pulling the choke partway out helps a little.
The carb is not loose, I checked that.
Is there any way to tell if it"s the carb or governor, such as manual fuel enrichment with propane? The fact it seems to be running out of gas makes me believe the carb is at fault, but I have not ruled out the gov either.
If you know a step by step procedure to check this, please tell me.
That bracket still should be replaced, no matter what, because it was never quite right.
PS. Are those float brackets the same on all farmalls in the H and M series? There may be something that comes up as far as a junker carb.
PS. Where is the carb number located on these carbs?
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