Re: Mountain or Cruise?
Dude and everyone else, Aircraft nuts they have a plastic ring in them will greatly reduce backing off due to vibration. Allen Head bolts are great also. Your going to need to grind the rear motor mount out to fit snug in the frame. A barrel cutter in a drill will do this. Home Depot has them. I use a steel plate against the motor on the back mount for a spacer drilled to fit over the studs up against the motor. 1/4 inch is fine. Remove the stock studs and replace them with all thread. Make a steel plate that bolts to the front on the motor mount. Replace the studs with allen bolts also. I use 2 1.5 inch U bolts to hold the front mount. Vacume hose slid over them to avoid chaffing the frame.
Only Bikers know why dogs love to stick their heads out of car windows,