OK, I asked this question before, but termed it as vibration. I think the better description is Shaking. Between 3000 and 4000 RPM, if I open the throttle, especially in fourth or fith gear, the whole bike shakes. It smooths out after 4000 RPM. I am starting to think something wrong with the engine mounts. Anybody else experiences this? It is much more than just vibration. Thanks.