Thanks for the responses so far, much appreciated. The problem with my situation is this. Schematic wiring diagrams usually show ignition switch as a bar with the 5 wires attached, normally as someone has mentioned with different colour coding. I have to determine which wire goes to which terminal on the ignition switch to ensure correct operation. The back of the switch has no identification whatsoever of the terminals. I know which wires go to the switch, they are all there. But which wires to which terminal? I could trial and error but imagine there would be a big risk of damaging other components? A photo, similar to the one Rufus sent through, of the same scooter would allow me instantly to see what goes where. Hopefully someone out there? The front cover has a centre bolt and 2screws coming forward into the cover, so very easy to remove. Thanks again for the replies.