Anything with side exhaust may be a problem. I have a great 3W-24 I had my heart on using, but will not work. I just found a RCS 140 rear exhaust that will work perfect as it mounts like a glow engine and has the power of a 120-150 4-stroke. If you are interested, I can contact the guy I got mine from as he has a friend with one and may be willing to sell it.

My thoughts...