Good vom 20K ohms per volt sensitivity. Put on highest range. Meter from each copper bar to armature shaft. Have not seen a short in this area myself ever.. What are symptoms. If short in this area I would think commutator bars would be very burned. Not just light purple. And brushes burned, too. More common might be open commutator. Look for loose bars and solder joints burned off. Check continuity from each bar to adjacent bar. Used to use 110 volt and 50watt light buld. Could use for short testing too. BE CAREFUL this little setup can fry you. Maybe stick to VOM. That was 50 years ago.
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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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