If that is an old regulator, give it your best to save it.
Before adjusting try filing the contacts with a point file. It's a very thin special file, probably have to order one.
The field contacts constantly arc when the voltage gets up to the set level, so they have a hard life. The arcing causes the surfaces to pit and burn, the file will dress the surfaces if there is enough plating left to dress. Don't use sandpaper!
That is the problem with the new regulators, the alloy on the contacts is very expensive, they shortcut with lesser materials.
Filing might correct the problem, especially if there is a point burned on one of the surfaces. File first, clean with brake or carb or contact cleaner, then adjust the voltage if necessary.
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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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