motor wont start, where shud I start?

Didnt read all of the posts, just because im tired, but on my SuperBee (383), It does this every once in a while. For me, my problem is just a bad connection at the switch.. If i press on the wires going into the key switch, it fires right up.

YOur another one that has convinced me to go after the ignition switch first, thanks for your input!