I know this may be a worn out topic for some long-standing TT members, but please lend me any knowledge you have. I have had my 99 400F for 2 years and I love it. Would never go back to a 2-stroke. My father liked mine so much that he went out and bought a 2001 holdover. I notice that my bike idles a lot rougher than his does, and even somewhat rougher than other 98 & 99's that I have seen. It is annoying to have to rev it occasionally at idle to keep it going, or adjust the idle screw up, and then have it race at idle after you run it hard and slow down. Any input you may have will be appreciated! Thanks boys.