One pretty simple way to get the full voltage to the coil on start is to put a #12 wire from the starter side of the big starter switch (hot when the starter is turning) take this wire to the ballast resistor and put a 4 amp diode on the end so that the electricity can flow to the ignition, but not back to the starter. connect the other end of the diode to the coil side of the ballast resistor. That simple change is equal to the replacement of the starter switch system to add an isolation ignition bypass. If the diode is in backwards, it will melt the ballast resistor. I am not sure I like the idea of the battery voltage dropping that much in 15 seconds. It should stay above 12.5 volts until the starter is engaged. Check cranking voltage (carefully in neutral with a helper) it should be at 10.8 or better while cranking unless it is way cold. Jim
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Today's Featured Article - The Rescue of a Fordson F - by Anthony West. Introduction I live in the UK and have for many years restored Fordson tractors (in the main model N's). I have also restored and shown model F's, E 27N's, Field Marshall Series 2, David Brown Cropmasters and the old rey Fergeson T 20. At one time I had seven restored examples which were shown and used in ploughing matches. As most restorers, I have a number of war stories I can relate on a range of topics that may help other like minded and interested people. Perhaps my first p
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