Dan, If all that you work on is the carburetor, the governor should not need to be changed or adjusted until after setting the carb. Top screw - Idle stop. It keeps the butterfly from closing too far. Middle screw that points toward the radiator - Idle mixture. Opening up this screw leans the mixture. Set for highest rpm without making black smoke (too rich). Bottom screw - Load adjustment.
Set them in the order you just read them. Put the throttle hand lever as you want it. There's no right or wrong, it is your preference. I had to set the operating range of the lever up on my '51H because of worn teeth on the plate.
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Today's Featured Article - An Old-Time Tractor Demonstration - by Kim Pratt. Sam was born in rural Kansas in 1926. His dad was a hard-working farmer and the children worked hard everyday to help ends meet. In the rural area he grew up in, the highlight of the week was Saturday when many people took a break from their work to go to town. It was on one such Saturday in the early 1940's when Sam was 16 years old that he ended up in Dennison, Kansas to watch a demonstration of a new tractor being put on by a local dealer. It was an Allis-Chalmers tractor dealership,
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