KiwiBro
Mill 'em, nails be damned.
ta. Did you ask why, in light of what you had already discovered when swapping those parts, their advised repairs worked? Could it be there was nothing wrong with the old coil and harness, just that it didn't mate, wasn't matched properly, with the mtronic or other stuff?No secrets here. Yes, I did swap the coil and wiring harness while trying to diagnose it myself. It didn't help at all. The dealer replaced the coil with the new "upgraded" unit, replaced the wiring harness, and also replaced the little metal ring behind the carb that sets in the mouth of the intake boot. They said it was slightly bent, but I saw nothing that would cause a problem when I was in there. If they did anything else to the saw, then I wasn't told. That's all there is to this story, nothing more.
Given your old stuff worked on the other,
good saw, what happens now if you swap the new parts to that known good saw?