Yes, I know that electricity is going to follow the path of least resistance. That's what has me a little baffled. I'm reasonably sure that all is fine with the wires, cap, plugs, etc. Engine is in good shape - no resistor plugs or wires, no oil fouling, etc. But yes, it's possible that for some reason a plug has an unusally high resistance. Not something that can be checked with an ohmeter since a good plug also has very high resistance due to the gap.
That's what got me thinking about the actual time of spark and rotor position when it happens. I noticed that when spark is occurring, the rotor is inbetween poles instead of being lined up with one. Seems that must cause huge resistance. Not something I ever had to think much about before this, and maybe all distributors are designed to work OK that way. Like I said, never really checked any others since I never had an issue like this.
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Today's Featured Article - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
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