With the points closed you should not get any voltage reading on the points side of the coil as the current should be flowing through the points to ground and any voltage reading you get is resistance between coil terminal and ground. So, if your points are not contacting or open you will have full voltage readings. That is the fact of the laws of physics. Try this, with switch on, hook a small jumper wire,(alligator clamp type works good)to the points side of the coil. Now , holding high tension wire from coil about 1/4 inch from frame, touch the other end of that jumper wire to ground, should get a low voltage arc from that jumper wire, now pull wire away from frame and you should get a spark out of the coil. Just remember this principle, the points are nothing more , or nothing less than a switch that grounds the primary windings from coil and every time that switch opens, the magnetic field in coil collapses around the iron core in coil and creates high voltage in the secondary windings, thus a spark. You are making a simple problem way too complicated.
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Today's Featured Article - On the Road with Dave Gohl: Tractor Club Beginnings - by Dave Gohl. I was surprised about a month ago when I got a call from a fellow tractor croonie. His message was interesting and to the point. He's says "Dave, I've been thinking about starting a Two Cylinder club for our area. What do ya think?" It was a loaded question. I said that I would be interested, and was wondering what his next step was. (Although I was talking under my breath, since I thought of this some years ago) My friend, Arlyn Lamb of Lakeville, Minnesota was sincere in his miss
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