My Farmall M has no resistor inline. Round can coil that says right on the coil 12 Volt no external resistor needed.
My 8N's had a factory ballast resistor that after it starts and run get warm and resistance increases. Neither has a dedicated bypass on the ignition circuit. Cars were generally a little more complicated than a tractor. Little things like bodies, doors windows, heaters, wipers and radios made them completely different.
Actually they were at one time designed to start with a crank. Then some fool (hero in my book) figured out how to start an engine with an electric motor and a storage battery. But by the mid 40's on they were designed to start with a starter but they did provide a crank as a backup.
I've kick started motor cycles and hand crank started a few tractors. It was an overrated experience! :lol: :lol:
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Today's Featured Article - A Lifetime of Farm Machinery - by Joe Michaels. I am a mechanical engineer by profession, specializing in powerplant work. I worked as a machinist and engine erector, with time spent overseas. I have always had a love for machinery, and an appreciation for farming and farm machinery. I was born and raised in Brooklyn, New York. Not a place one would associate with farms or farm machinery. I credit my parents for instilling a lot of good values, a respect for learning, a knowledge of various skills and a little knowledge of farming in me, amo
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