Mitch Mitchison

Hi all, I have a XJ900 Trike on which the original ignition switch has gave up, so I am wanting to replace it with a ON/OFF toggle switch, I have a switch with 2 connections on it. I have 4 wires from the original switch, RED, BROWN, BLUE, BLUE & RED. Do I connect the RED onto one terminal and the rest onto the other ? or do I need a 3 or 4 terminal switch ? Cheers, Mitch.