The cases are split and the results of the failure are in. Cracked piston and scratches and almost 3/16 " of play in the rod. It also turns out that the top end was botched together with some strange sleeve that had the ports misaligned. No wonder it would barely break 130 KPH. Sooooooooooooo we're gonna bung on a new piston, rod, crank bearings, seals etc. Plus Ball is breaking out the Dremel tool for some magic on the ports. The new motor should be pumping out a....hold on to your seats...a manly 20 HP. I know Snail will be quivering in his tennies and won't be able to sleep for fear of the NSR reborn and its newfound 4 1/2 HP.