That is why I need the diagram of the internal positions of the OEM switch. Most wiring diagrams show that but not for the 1476.
OK - Here goes:
The 1476-01 uses the # 1721409 ignition switch, which was also used on several models of the tube-frames.
Look at the 1476-01 wiring diagram here.
The switch terminals are marked: S - B - A - Y - X
The internal connections for the # 1721409 key switch are:
Position 1 (OFF) no connections made
Position 2 (RUN) A+B connected together also X+Y connected together
Position 3 (START) B+S connected together also X+Y connected together