I just got my bike put back together, changed all fluids and took it out for a spin. The engine runs great, but when I hit the throttle hard the engine rpms go up but it does not seem to accelerate like it should. It is almost like the tires are spining but there not. I added a little more gear case oil and it did not help. It was fine before the rebuild so I cant figure it out. The rebuild was a 80 over bore new gaskets, wiseco pro lites, and thats it. Is my clutch shot? I only had 80 psi of cylinder pressure before the rebuild, could the added power just enhance a bad clutch? I also used to run race gas and now am running 93. I cant think that would matter.