Re: release screw
As Moody said. If the motor is down, loosen the knurled knob and you can lift it up, and lock it up with the dog ears on the transom clamp. it will lower manually as well. if you lift it hydraulically, loosening the manual release will do nothing. You will need to open a hydraulic line a bit and let some oil leak out to lower it manually. I think reverse lock is off if you turn the knob CW, but I am not really sure anymore.