I recently bought a 1979 glasstron with a 1977 mercury 1150 outboard. The trim motor would run but nothing would happen. Come to find out there is a manual lock. After trying to move it up and down with the lock on it now just clicks, but only when moving the switch up. When switching down nothing happens at all. I’m wondering if there is a fuse that blew or if I just toasted the motor itself. Any input would be great!