It is normal for the resistor to get hot in the engine is not running, the switch is on, and the points are closed. If it is a new resistor or if any oil or debris happened to get on the resistor it will smoke. Like any other electrical heating element, as then resistor gets hot its resistance goes up and less current will flow through it. It becomes self regulating in that it may get red hot but should not burn out. But like a coil there is no guaranty that they will act as designed. Just don't leave the switch on without the engine running and youl will not have the problem.
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Today's Featured Article - Talk of the Town: What's in Your Tractor's Toolbox? - by Staff. This recent discussion on the Tractor Talk discussion board here at the on-line magazine drew so much response and proved to be so interesting that we wanted to share it with you here. The names of the people participating in the discussion have been left out to "protect the innocent" (to quote a once-popular television series).
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