I have a mid-90's 21' Trophy, and for reasons I can't figure out, the steering is stuck in a hard turn to port. Just pulled the boat out for the Spring inspection the other day, ran the motor, cleaned it all up, and noticed that the motor (outboard Merc 125 HP) would not turn at all. Never heard of a cable freezing up or anything like that, and can't find any type of physical obstructin or lock. Any thoughts or past experiences that would give me a clue where to look?