Thanks for the advice
I have looked a little deeper today. I found the relevent plug on the becm, disconnecting it turned the lights off. There was a degrading sweet on top of the unit which had leaked sticky stuff onto the plug. i cleaned it off but still have a light coming on. After discinnecting the battery and leaving it off approx 1 hour there is only the n/s rear light that comes on now. This only happens after about 1 hour before the light comes on and stays on the indicators work fine.
Has any one attempted converting the lights to a conventional flasher unit?
Thanks Neil