Posted by JonnyB on February 12, 2015 at 18:21:54 from (64.130.174.249):
I am changing over to electronic ignition & 40,000V coil. I have a 12V system. Can anyone tell me what to gap the plugs at for best all-round performance? I have only seen one comment in another forum that said .045-.060 is best, but it was for a different tractor, and this sounds too generically automotive V8 to me. Thanks in advance for any advice.
Thank you everyone for the great advice. My plug wires aren't completely new, but they are still very good, premium wires and my plugs (.025 factory), cap and rotor are brand new. Cross-fire was one of the things that I thought about when I stated that I thought it sounds generically V8, because I sensed that this old systems engineering didn't take into account this possible upgrade. Thank you all again for the great advise. This is going to speed my tuning experiments tremendously.
This post was edited by JonnyB at 04:46:38 02/13/15 2 times.
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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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