Yes; a few changes. I've modified the silencer again with a redesigned mute/packing in the rear cone. The previous mute/packing made the silencer too long.
The engine starts and runs, but the two Mikuni carburettors need rejetting. The K&N lunchbox filter leans the mixture and lord knows what effect the exhaust system is having. So current position is that the engine will start and run on full choke, but any slight opening of the throttle will kill the engine

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So the plan is to recheck the float heights, open the pilot screws 3 turns (2.25 from factory), raise the needles one notch and fit 140 main jets (120 from factory). I can also play about with the number of discs installed in the Supertrapp silencer. So now waiting for the jets to arrive. Once the engine is running reasonably, I can get the MoT done.