I have a 78 Maxi and have a problem with the wiring. The original switches broke off from the previous owner, so I have the 2 wires for the kill switch on the left side, black and brown, and the 3 wires for the lights and the horn on the right side, blue/black, black/yellow, and yellow. So far I have found no way to get the headlight to run (black/yellow wire) without the horn (blue/black wire) being on. If the blue/black or the black/yellow is grounded, either one, the bike will run. Right now I have the black/yellow connected to the yellow, and the blue/black isn't connected to anything, and the headlight works fine but the horn is still going off. Rather annoying. If someone could tell me how to fix this it would be greatly appreciated. Thanks.