I have a 1989 90 hp Yamaha on a pontoon boat and the steering has become quite loose- i.e. when you let go of the wheel it turns quickly to the right, even at low speeds. I have tried adjusting the trim tab to stop the turn to the right but it has only reduced the problem. I haven't tried to tigthten the hydraulic steering system because I thought it would be better to tighten the motor itself, but I can't see where to tighten the motor.<br />I also have a 1989 30 hp Yamaha and there is a screw on the left side of the motor that tightens/loosens the steering, but nothing similar on the 90 hp motor.<br /><br />Can anyone help?<br /> 