Hello everyone.
I am looking to set up a kill switch using a handlebar-mounted control that acts directly on the Lucas magneto of my BSA WM20. It involves grounding the magneto to shut off the engine. Could someone guide me through the wiring setup?
Thanks. Patrick

email (option): patricklena@netcourrier.com

Have a word with Andy at Kingpin Components. He's very much a practical rider of our sort of motorcycle. The principle is simple but a tidy installation requires a bit of thought.

https://www.kingpincomponents.co.uk/points-caps

Thank you very much Rik !!

Why do you need a kill switch? You have the compression lever to shut the motor off.