I took out a 78 Ebko tri-hull for the first time Sunday. 140 Merc I/O ran great. It goes forward - it goes in reverse. The outdrive goes up and down. But the steering wheel seems locked. The outdrive does not turn left or right. It appears to be hydraulic steering ... the wheel goes to a "wing shaped" cylinder behind the console, with a hard line going from there to the stern. Any suggestions on getting me out of the no wake zone on my next trip?