Robert, I went the same route you are contemplating. Used a MD generator on my SM when I restored it. I kept the ground positive so all my wiring is still IAW the original wiring diagram. I scrapped the 6 volt coil and went with 12V. The tractor starts and runs great. The 12V genny keeps the battery fully charged and has no issue when all lights are being used. I would suggest you go with a American made regulator. Brillman sells them. I have had a brillman on my H for over 10 years and now my SM and neither have had issues.
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Today's Featured Article - The Mud Daubers and the Old John Deere - by Jon Zehnder. I have a 1941, John Deere Model A tractor I have owned for about a year and a half. This is my first (in case my wife reads this, "FIRST") tractor and it has been a learning experience. After considerable advise and assistance from local tractor nuts and the forums of Yesterday�s Tractors, I had finally got it running pretty well. I have tuned it up, overhauled the carburetor, installed a borrowed, rebuilt magneto, installed a new Power-Trol, patched the radiator, installed new front wheels a
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