Surging on any gas engine CAN be a governor problem IF the governor arm to carb throttle shaft is the wrong length. May not be a carb problem at all. On your application if the rod is too short, it will surge. If too long, governor will be lazy and not respond when under load. With engine off, throttle wide open, the book calls for the ball end to just fit on the throttle ball. Just went through this on my Ford 4000 gas with the 172 engine.
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Today's Featured Article - Timing Your Magneto Ignition Tractor - by Chris Pratt. If you have done major engine work or restored your tractor, chances are you removed the magneto and spark plug wires and eventually reached the point where you had to put it all back together and make it run. On our first cosmetic restoration, not having a manual, we carefully marked the wires, taped the magneto in the position it came off, and were careful not to turn the engine over while we had these components off. We thought we could get by with this since the engine ran perfectly and would not need any internal work. After the cleanup and painting was done, we began reassembly and finally came to t
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