My rpms would be at idle (1300rpm) with the clutch pulled in, sitting still. It has done it since new and it seems pretty normal. Also it seems like it this typically when the bike is cold. When I ride for awhile and the motors hot if I stop at a light and flick it into nuetral and when the light turns green I put it into first this does not happen. Maybe when the motors hot the clearances loosen up and the oil is fully circulated and coating everything, i.e(shift forks, drum, transmission gears.)???