"Sounds like we are in the sam
"Sounds like we are in the same boat.
Looking at the wiring diagrams, I think we have the same electronic parts. Yours being a 4 banger vs my 5, that is if you have the Thunderbolt ignition system.
Looking at the diagram, it appears to me the stator is only used to charge the battery. Someone, please correct me if I'm wrong. I'm leaning more toward the switch box, trigger or converter box (I don't think you have a converter on your motor). Unfortunately, I don't know of away to test them electrically without a DVA meter.
If you have a manual, there's some checks you can do with a simple DVM. Never know what you might find. Good Luck"