Low Idle Problem '00 600

[lighTToast]

My Kat's been idling low for the past month or so. I've cranked the idle up as far as it will go and it still falls to around 500-600 RPMs when I'm sitting at a light. My mechanic suggested that I clean up the spark plugs so I did, but I haven't seen any improvement. I know it tends to run rich and it's been jetted, so it idles a little low anyway, but it should be much closer to 1000 RPMs. I'm thinking about cleaning the carbs up, but I figured I'd ask around before spending a weekend doing that.

Any solutions to similar situations would be appreciated.

2000 GSX600F
Jetted Carbs
Yoshimura Exhaust

everything else is stock

Sorry...I forgot to post that I recently had a K&N Filter put on as well. I'm sure thats not causing my problem though

[1990gsx 600]

hmm than you need to adjust your pilot screws and prolly clean your carbs too