[JAD]

Thanks all, I have been investigating and the low beam, led tail light and brake lights work fine until I use the left handlebar switch to select high beam. High beam then works fine but the tail light turns off. Which is a novelty!

I am guessing that the tail light is powered from the low beam circuit and consequently turns off when high beam is selected. I shall investigate some more...

ps...what does the red switch on the right handlebar do? (all marking have rubbed off the switches) . I have traced the wires and they both go to what looks like a CDI unit under the seat.