Sure, Chuck, as much as I understand about them, I can. I haven't kept track either, but I remember that there were some muffler mount issues, which he developed an easy fix for, easily taken care of at upgrade time.

Then there was a prop plate that he added drilled and tapped thread holes for drilling and securing props, since for being such a small engine, it still was developing enough torque that it was managing to pull some props loose under certain conditions.

That's all I can remember. Anybody else have anything to add to the list?

Jim