Well since I found out I cant run liquid cooled engine in the 0-230 class, I figured id build my 250r quad with an engine far more powerfull than the stack 250r engine, a honda CR250 that has around 42-45hp. Again, the only thing i am concearned with is vibration, so if anyone has put a 250 mxer bike engine into their quad frame, let me know how you did it and what ways you used to cut down vibration. I was thinking, is it possible to have someone put a counterbalancer onto the cr250 crank? Im sure you could use the trx250r counterbalancer but is their anyway to rig it onto the cr250's crank? And another thing, is it possible to use the trx205r's ignition and wiring with the cr or should I just take the wiring off the bike and put it on the quad?

 

How about a 3 wheeler motor like an air cooled 250R trike they were made from 81-84 i think