A duke of hazard needed!

As you know, our classic bikes were never fitted with hazard lights. Cars have had them for years. I reckon that many owners would be interested in a feature on how to fit a system to a bike. A problem is finding a waterproof switch suitable for both faired and naked bikes. A wiring diagram would be helpful to most of us: an ideal lockdown project! Alistair Shaw

Bertie says: "I'm sure some ready-made switches are available Alistair, as many tourers from as far back as the 1980s have had them."