I recently purchased a used 1986 Mercury 20 hp tillar long shaft outboard. This is my first small outboard like this. Can someone tell me how you release the tilt so I can raise the motor when I trailer it back and forth to the lake? I've found the lever (I think anyway) but can't seem to move it. Are they known for getting stuck? Everything else seems to be in great working order. Thanks for any advise anyone has on this.