I don't kknow if this is the proper place to start this but here goes. I have been thinking about putting a jet ski engine in a flat bottom jonboat for use in a shallow rocky river. Speed not inportant. I have found a 2 cylinder yamaha wave runner cheap. Don't know the horse power but it was for two riders. The only thing I know about jet skis is I don't like them buzzing me when I'm fishing !!!!!!! Has anyone ever hear of anyone doing this. I have a fully equipted shop and can tig and all that. I would like to know if anyone has tried this that can maybe give me some insight into what I'm getting into.