I just bought a '85 lt250r for cheap cause it needs some work. The way they mounted the motor in to the frame didn't seem to be the right way cause its got some vibration problems and cracked the frame by the front motor mount that they made. Someone told me that a chevy tranny mount in the front would get rid of the vibration. Then I can just gusset the frame. I was wondering if anybody has done this or has seen this done Any info or help would be greatly appreciated.

 

The frame probably cracked because dirt bike engines are not counter balanced and vibrate much more than quad engines.