When I got the bike there was, and still is a wire with the remnants of a switch hanging off it. I presume it must be for the horn as there are no other switches on the handlebars. However, there are too many conductors for just this alone, surely? There are 4 wires, 3 blue and 1 yellow.
Does anyone know what the purpose of all these wires might be? The wiring diagrams o the service sheets don’t show this at all so maybe a later addition? Does anyone have a recommendation of a replacement switch/type of switch?