From the MBC forum, remember seeing it before even though I never had the problem. They also mention that the bracket that holds this piece can break alot.
"Check the lever next to where the tilt piston is. Its about 3" long and has a spring that pushes it up when the motor is tilted up. The spring can get corroded and stop working (stay down even when the motor is up). Loosen the tightening screw, clean the spring, lube it, re-tighten and work it until it moves up after pushing it down. I would be willing to bet you thats the problem."