Well, I'm now in London. Bike went very well mostly sitting on 120 km/hr
Even though I have the 1989 model (i think) with the lower compression and smaller valves, it still seems to go very well and think it would almost rev out with the 15 tooth sprocket
I was trying to prebook an MOT in Dover but i the end just drove on to the Chunnel Train then off and straight up to London
Easier but a bit naughty. I can get MOT at my leisure now.
OF course now the clutch is starting to slip in the higher gears
So I guess I will have to dismantle and check the plate thickness.