I am able to get a 85 250r frame,forks,tank,plastic, all I need is a motor, swingarm and axle. I was wonderin if its possible to put dirtbike motor in it or another 4-wheeler motor. If so what kinda of motor should i put in it?

 

I think the biggest problem with a dirtbike motor is the kick starter. Check ou the links below. One of the guys on the 3wheeler.org board has a 500 cr motor in his R.

Woodo

http://www.3wheeler.org/ubb/Forum2/HTML/000061.html

http://www.3wheeler.org/ubb/Forum1/HTML/000551.html