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 - Pitfalls of Tractor Engine Rebuilds - by Chris Pratt. The first pop after you have put the machine together with your own hands is exciting and pleasing. The whole experience can be marred if one moves too fast and makes too many assumptions that they can just use "as is" some parts they should be closely scrutinizing and possibly attended to. In such cases, rework makes what could have been a fun project turn into an irritant or even a nightmare. Minor Irritants To give you an example of an minor but irritating proble
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