My bike is running more happily now.

Recently on cold mornings it's been runnin rough and not liking to Idle.
I talked about it with the Ducati Rider who sits next to me at work,
when I mentioned that the power died suddenly if I rolled off the throttle even slighly he said"It's lean, classic case"

So Tonight as it was cold and playin up on the way home from work
I turned the mixture screws 1/6th of a turn richer.
What do you know, the bike starts behaving again. Nice.