Hello!
Did you have some problems? My powervalve did't open att all and bike was like 150cc 4stroker. Yesterday I washed it and looked under rhs powervalve cover. The bolt that connects powervalve axel to that trangle looking plate was loose. So small problem, and easy to fix. Just didn't come to mind when testing bike at car... Well maybe better that way... There was so much dust in the air that racing was dangerous even with that speed...