Hi, I have a 22' Boston whaler outrage, the 1999 Johnson on there is blown, I just acquired a 1998 Yamaha 130. Can somebody tell me if i have to change the throttle control or is it compatable, its a omc flush mount? I want to change the engines out, but I need to know what things I can possibly keep and what has to be changed. Also do I have to rewire all the guages or can I cut the old wire harness and splice in. What is recommended. I have worked on alot of boats, but never changed out different outboards. Thanks JP 