make 100% sure you line the sprockets up. if the rear carrier bearings are shot, replace them before you do anything and the same for the swingarm pivot tubes. if either of them move around, your wasting your time lining anything up. you will need to make all your motor mounts. with the mounts cut out, you can move the motor up or down for better pipe placement. the pipe will be the hardest part to fit. the radiator is also a tough fit. mine fit into the frame just right. just made an upper mount and welded it to the frame. than used the stock blaster fender brace mounts to mount the lower part of the rad. I want to do a 250 some day. not sure when.