So, I'm no maintenance wizard, and living in the city without my own garage, it's tough to do my own maintenance. But the idle on my '05 had dropped to about 900 rpm, and not wanting to feel embarrassed by taking it to the dealer, I decided to do it myself in my condo's parking lot. After looking at the maintenance manual, not only was it a simple, 5-minute task (using only the tools that come with the bike), but the bike immediately RAN better. That is, accelerating and shifting became easier and smoother because the revs were not dropping below where they should be (which was causing a lull in the performance). 1,150 from now on!