When starting, the battery voltage is dragged to 10.8 to 11.5 volts with a good battery. In cold temps, this can be 10 volts, and it also assumes good sized battery cables. When the resistor is in use on a 12v resistor required coil, or a 6V coil, the lowered voltage is reduced to the point that spark is compromised. Thus a resistor bypass puts puts at least 10 volts into a 6v coil making great spark when needed most. When the key is turned to run, the coil is again given its rated voltage. When a 12 no resistor needed coil is used this advantage is just not there. It is commonly used on automobiles and has a history of being a standard method of increasing starting reliability. Jim
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Today's Featured Article - Product Review: Electronic Ignition - by Staff. Oil, for example has come a long way in the last 50 years and I don't use anything but the latest API grade available. I've heard the arguments for non-detergent oils but would never trade it for today's formulations. Paint is another, the modern acrylic enamels are great for resistance to grease and fuel stains, retaining their shine and they last forever; unlike enamels and lacquers . Still another is the alternator. No doubt using the original generator keeps the tractor pure, but for thos
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