The problem with the chainsaw theory is the output is perpendicular to the normal plane of a saw blade. Is what we see the remains of a centrifugal clutch on the output shaft? Tom
Tom- This was my thinking exactly. I believe we were mistaken my friend. That looks to be some kind of contraption when it's in operational mode!
Chainreaction- Thank you for that link. That's the one. Being in the Great Northwest, and working with chainsaws regularly, I should have known- but you could fill an ocean with what I don't know.
I have yet to even check compression. It looks rough though.
Still, I'm excited. This could replace my dream "5hp Briggs" cruiser build. I will do an inspection, and return to tap you good folks for guidance. Of course, any ideas or info you can share now would be appreciated.