My brother got completely screwed over by some jerk last winter when he bought a 800 rmk. It went about 2 miles up the trail the first day out and the motor whent out. when we took it in to tri city they found that it was missing 6 bolts out of the bottom end that hold the whole engine together. at anyrate the motor now is a total loss so we are looking for alternative engines to power the sled. Does anyone know where we could find complete replacement engines preferable new crate type? Thanks for your help.