Thats how I understand it, if the start time lags the run time 23 degrees (23 degree lag angle), and she starts at TDC, then she will run at 23 BTDC. All this timing stuff is subject to points gap and wear n tear n slop in the impulse assembly and other wear factors I reckon. Thanks to the gents who helped me understand IHC mags also. If youre ever at Florida Flywheelers, Grant has a beautiful under glass breakdown with all the parts and labels for an IHC Mag and a Generator, a pictures worth a thousand words and a complete breakdown of all parts must be worth ten thousand words........Yep, I'm more of a John Deere guy, but they let me hang out over there on the "dark side" lol and I even gave a brief workshop/seminar on IHC Charging Systems last year......
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Today's Featured Article - Timing Your Magneto Ignition Tractor - by Chris Pratt. If you have done major engine work or restored your tractor, chances are you removed the magneto and spark plug wires and eventually reached the point where you had to put it all back together and make it run. On our first cosmetic restoration, not having a manual, we carefully marked the wires, taped the magneto in the position it came off, and were careful not to turn the engine over while we had these components off. We thought we could get by with this since the engine ran perfectly and would not need any internal work. After the cleanup and painting was done, we began reassembly and finally came to t
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