Dare i admit to a very simple solution
Spoke to the lovely Nelly and he said 'Bugger orf Duck and leave me alone' but also added have you tried just taking a fraction of a turn out of the slack on the throttle cable.
Err, no says I.
Sceptical BDG does as told and Bingo, it starts a treat over the course of the next few attempts.
Being untrustworthy of such a simple solution i ignore the bike for 3 weeks then creep in the garage and stick key in and it fires up really easily.
Would appear that with a fraction too much slack in throttle cable the cold start/ fast idle button under the throttle doesn't quite open throttle enough to get it to start.
It may sound daft and simple, but seems to have worked and if it saves one other person a bit of agg then thats good news.
Then went for a lovely but COLD & WET 60 mile thrash in the dark
Then we all live happily ever after, Sunderland get promoted, win the League Cup, FA Cup and the Egg Cup.
[Edited on 29-11-2004 by BDG]