Hi,
Well, a very good reply, thanks.
Took off the primary chaincase cover to see which wires went where, obviously been rewired with a standard 3 core cable at some point in time. But with the help of the picture on the C15 web site was able to trace the correct settings, had 2 in the wrong place.
All now OK, even went for a ride. Bit cold today though must be getting old !!!!!
many thanks
Gregg