thanks downunder, that is pretty well how my bike performs, or under performs, on cold mornings. And cold misty/foggy mornings are worse.
Strange thing is that my wifes Monster 750 and sons KLR650 don't suffer the same problems.
The "no warm up" method seems to have done the trick, but given the b12 is due a service I might throw in a set of 'hotter' plugs as well.
I think I read somewhere that some overseas models had some sort of 'carby' warmer.