RE: Motor mount help?
Loosen the setscrew and the motor will come off of the backplate. Screw the backplate to the firewall. Slide the motor back into the backplate and tighten the screw. If you want to use the stickmount, put the centre of the motor up against the hole in the stickmount just below the square part. Drill the three holes using the backplate for alignment. Most of those motors 8-4 or 8-6 props.