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 - Experimental Tractors Article - by Danny Bowes (Dsl). Tractor technology appears to have nearly hit it's pinnacle of development. If you agreed with the subtitle, you are rather mistaken. Quite, actually. As a matter of fact, some of the technology experimented with over 40 years ago makes today's tractor technology seem absolutely stale by comparison. Experimentation, from the most complex assembly to the most simple and mundane component, is as an integral a part of any farm tractor's development
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