I agree Crosbyman,
Still gets it’s electrical energy from magnetiom. Seems to me it must have some kind of trigger to make the coil fire. Or cut off the energy from the primary windings to “cross” over to the secondary windings & fire the plug, Without a drawing it’s a guess at best. I have dealt with all kinds & applications with electrical but never a BIM system. In 1964 my Dad & I installed a transistor ignation on his 1964 Chevy pick up & the transistors did the switching to fire the coil.
More than likely using the same components of sort but with out a drawing I’m lost, Guessing a SCR silicone controled recifiter or ??? Something needs to trigger it with a threashold voltage after the magnets induce a flux field.
I did some florescent lighting dimmers & we used SCR’s to slow down the switching causing the lights to dim even with full 120 volts, A guy could reverse that to fire a coil. Guessiing.I too have a 1979 Evinrude 85hp & the manual tells how to test it but how the switch box is built down to a component level. Trade protectios??
