Amazing how much difference having properly set up carbs makes, isn't it. Picked the behemoth up this afternoon - started first time and pulled its revs up straightaway, something it hasn't been keen to do the whole time I've had it. Possibly something to do with the pipe broken off the side of carb two actually turning out to be the feed to the choke mechanism - without this, it was getting more air than normal rather than fuel when the choke was on. And now the really unexpected bit... When I bought this, I accepted that, what with it being a big heavy nekkid bruiser, it was never going to be all that on fuel. The best I'd got out of it up until now was 34mpg. Today, as well as pulling through with much more vigour through the mid-range, it's done 40mpg over a mix of country lanes and A roads, and without me being particularly shy of the throttle. I don't think that's bad at all for something this hefty. :-)