The 1969 diagram on Black Widow Motorsports will get you close. The brake switch, tail lights and engine are the same. The handle bar switch turns the lights on and off ( one position is not used) and the switch on headlight bucket is a Hi/Low beam. This is what I came up with anyway, I have the Rupp manual and it has no wiring diagrams. If you had an issue you had to buy a harness.