If it is running you can assume the ignition is working. If it has a magneto ignition it is a self powered system that has no battery power hoked to it at all. It has a small internal generator inside the housing that with other parts makes timed spark to each plug. It is recognized by being an all in one unit. The Cap from which the spark plug wires originate has a center terminal connected by a short spark wire that goes to the rounded cover on the top of the unit. A distributor will have that wire going to a separate coil on a different bracket. (usually a cylinder of some description. A mag is connected to a kill switch that grounds the mag side terminal, shutting off spark. A point and coil distributor has power going to the separate coil from the ignition switch. On Farmalls the switch for both look the same from the button point of view, but one is a grounded switch with only one terminal, and the other gets power from the amp meter and has two terminals. The trouble shooting guide included will help. Jim
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Today's Featured Article - Harvestin Hay: The Early Years (Part 2) - by Pat Browning. The summer of 1950 was the start of a new era in farming for our family. I was thirteen, and Kathy (my oldest sister) was seven. At this age, I believed tractor farming was the only way, hot stuff -- and given a chance I probably would have used the tractor, Dad's first, a 1936 Model "A" John Deere, to go bring in the cows! And I think Dad was ready for some automation too. And so it was that we acquired a good, used J. I. Case, wire tie hay baler. In addition to a person to drive th
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