Heres a little FYI. I have had this 900 for a while now. I thought it ran very well until now. It is stock except for V-Force 3 reeds and an SLP pipe and can. It runs strong right up to 7900 rpm and lifts the skis about 6 inches every time I pin it. I was doing some tinkering with it and decided to check my powervalves. Siezed solid. Now it feels like I have gained 20 hp and it lifts the skis about 18 inches when I hit the flipper. I always thought that the 900 would not rev to the max with powervalve troubles. Now I know that is false.