You will find that there are 3 terminals on the back of the two position ignition switch. The red is fused battery+, which needs to be connected to the red/black wire that runs the instrument panel and allows the alternator to charge, and the white wire which supplies power to the starter push button. Some sources warn against starting the engine without the red/black powered as it could ruin the alternator diodes.
You can get the wiring diagram here:
http://j30.us/blog/?page_id=356 Good luck!