If you do the conversion , do not get the coil that does not need the ballast resister(3 ohm coil). Get the 1.3 ohm 12volt coil and the proper ballast resister with it. Use the existing (or install) starting bypass wire so that you will get full voltage to the coil when starting.
The 3 ohm coils have a high resistance wire in it to increase the resistance to 3 ohms. The winding ratio is unchanged from the 1.3 ohm coil. As this coil has no way to bypass this additional resistance when starting , when cold the tractor will be much harder to start.
Also the heat generated by the ballast resister will now be generated inside the coil increasing resistance and shorting the life of the coil.
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Today's Featured Article - Choosin, Mounting and Using a Bush Hog Type Mower - by Francis Robinson. Looking around at my new neighbors, most of whom are city raised and have recently acquired their first mini-farms of five to fifteen acres and also from reading questions ask at various discussion sites on the web it is frighteningly apparent that a great many guys (and a few gals) are learning by trial and error and mostly error how to use a very dangerous piece of farm equipment. It is also very apparent that these folks are getting a lot of very poor and often very dangerous advice fro
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