Mercury Ride Guide steering adjustment, How?

[bitsamonkey]

Okay, it's hard to explain this without mutually agreed on names for the parts. What I'm saying is that you need to turn your wheel to where the ram of the steering cable is in the middle of its travel and adjust the length of the arm that connects it to the motor so that the motor is centered as well. Now you will have equal travel of the motor in both directions, and from your pictures, it looks like it's too short. I'm referring to the part with the red arrow pointing to it in your picture as the "arm".