I'm not really sure how to describe this, but best I'd say is a flat spot. Basically, at any RPM, if I'm going off to on throttle, it seems to bog down slightly if I don't turn the throttle enough. This can also happen if im just reducing my throttle input enough, that it bogs down slightly. It doesn't concern me too much in straight lines, but make cornering a bit unpredictable. Any idea what this is called, what may be causing it, and most importantly, how I can fix it. Oh, and it's a 2000 Kawasaki ZZR250.