That red wire monitors battery voltage. You can hook it right up to the battery terminal on the alternator if you like or run it thru an idiot light that is powered up with your ignition switch. Or a diode can be put in place of the idiot light. If you hook it to your ignition switch be sure to use an idiot light or diode. If they are not used the alternator will continue to feed the ignition system after you shut the key off and you won't be able to shut off your engine with the ignition switch. You should be fine though if you hook this wire to the accessory terminal on the ignition switch. I've hooked many of these up this way.
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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