I have a 18' 1988 Sea Swirl Fish/Ski with a 1988 Johnson 120hp. I purchased the boat about a year and a half ago and the previous owner replaced the steering wheel, gear box and (Single) Steering cable just before the sale. I was out on it today and went to turn left and the wheel just kept turning and the motor moved but very slow and not much movement, but if I went to the right it works normally. I can turn the motor very easily from behind the boat so I do not think the problem is at the motor. Has anyone else experienced this before, does it sound like a bad gear box or did something come loose? Thanks in advance.