I have a Mercury 115 hp, 1976, with a stuck neutral button. I have repair parts and a diagram of the neutral button mechanism. I'm trying to get the control out of the boat so I can work on it but I'm stuck. How do I get the darn thing out. I have the cables disconnected. Now I need to removed the wiring going to the ignition switch but I can't figure out how to get the wiring harness loose from the throttle box. Can anybody give some tips on how to proceed? Also, how do I get the throttle handle loose from the control box?