I need to change the ignition switch on my boat. I have an 87 Black Max XR-2, I believe it is a push to choke also when I pulled it out on the housing to look at it the wires are soldered to the back on the switch. When I looked online I found several one but I don?t know which one is correct. Is there a part number some were that I can use to ensure that I get the right one?