Thanks guys. Braking down always sucks ...
I'm in se London. I hear so much good stuff about the ktm center in hemel, but it's quite far for me. Paul, ex-bracken, reckons in moto in Croydon are very good, so i'll give them a try. They sounded professional on the phone anyhow.
I had a quick poke around the wiring I could see, but no success. I doubt it's the main battery wiring as the head and tail lamps go on immediately, but nothing else. I'm thinking it could be the ecu.
hopefully they'll find a reliable fix as i've got a weekend in Wales lined up.