Identical clip-ons and switches on the 750 S3, I removed the connector block end first, then pulled off the plastic sheathing, slowly pushed the wires up and out through the bars.
I recommend buying new PVC sheathing and spritz some glass cleaner or dish detergent / water into the PVC and then push the wires through. MG Cycle sells new rubber boots that cap the end of the clip-ons as well.
The switches are delicate and it's a good time to get some brake cleaner and wash them out. I cleaned up the brass parts inside the switch with a fine file and brass brush then some electrical grease.

The head light switch locks into a recess in the clutch perch and the switch into a recess in the light switch.
