The reality is he is not informed. Running a 12 volt coil with the 5 ohm value on the primary will let it run well, but not enhance the starting. Run a 12 volt coil for use with a external resistor. It will be equivalent to a 6 volt coil (not an issue) Use a ballast resistor out of a mid 1960s Chevrolet Belair 6 cylinder. (it just works) Connect the resistor to the coil positive side if it is negative ground, and the coil negetive side to the points. If positive ground, the resistor goes to the neg side and the points to the pos.
Next run a 12ga wire to the coil side of the ballast resistor from the area of the saddle switch or solenoid relay. Use a diode (Old diode from a scrapped out alternator is good, or one from Radio Shack (5 amp 100piv) Make sure it is polarized so it conducts toward the ballast resistor when cranking, and blocks flow when just the ignition is on. Top assure this: with the diode hooked to the 12ga wire only, use A test light from the open diode lead to the tractor frame. with the ignition on, the test light should not light up. If it does. it is wired with the wrong polarity. Reverse it. This diode will prevent the back flow into the starter which just turns the resistor into a temporary light bulb. Jim
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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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