if it has a three terminal solenoid on it, there will be two big terminals, one from the battery, the other to the starter. the third terminal will be a small postusually on the top. the small post is where the hot wire from your starter button will go, that terminal will cause the solenoid to close when the starter button is depressed, causing the starter to engage. on the big terminal on the solenoid coming from the battery, there should be a good size wire, prolly #10 that would feed the tractors electrical system ie lighting and starting circuit. if it has a 4 post solenoid, 2 big and two little posts, on some older cars, the second small post would only be hot when the solenoid engaged the starter. what they did there is run a separate wire from that post directly to the ignition coil, (bypassing the ballast resistor) so it would put 12v directly to the coil, giving a hotter spark on startup. when you relesed the starter button, that circuit would then shut off and the coil would be fed power thru the ballast resistor. some of the older fords ran that set up, and some of the early gm's would do that, but from a starter mounted solenoid.
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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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