300/440/550 My jet mate

[curtains21]

I have a 1992 jet mate that I bought a couple years ago and have not been able to find anyone that knows anything about these things. I bought it with a blown motor, so I bought a newly rebuilt motor to drop in it from a stand up jet ski. I couldn't figure out how to hook up the new wiring with the old, so I took to the dealer and they couldn't figure it out either. They spent so much damn time on that thing and they came up with nothing except a fat bill. I guess their final analysis was that the brain box on the jet mate wasn't compatiable with the new motor. They said that they could rebuild the old jet mate motor for 1400!!!!! So I laughed at them and took my jet mate home. There has to be someone creative enough out there to be able to figure this out because I nor the dealer can figure it out. My jet mate is northern michigan and I am in chicago now, but I can meet up with someone if you think you can solve my problem. thanks