i just picked up an 88 trailboss 2x4 with a seized motor. it was free so i cant complain. my main goal was is to try to swap in a 250 2 stroke motor out of a cr yz etc... how difficult can it be? besides welding in new motor mounts. ive never done a motor swap before on a 4 wheeler, car yes plenty of times but not a 4 wheeler. any advice would be much appreciated.