Thanks for the info. Its funny I bought a lot of engines a few days ago. In the lot was two rare atwood wasps. One is complete with tank keeping in my collection. the other is missing the piston but I bet the crank will work in the outboard. But the thing I don't know is if the outboard was a special crank that hooked to the flexshaft, or if im missing some other pieces to connect it up from the crank I have to the flex. I need to find a set of instructions for it.