Hey so I recently got a 09 cbr600rr with 15k miles. And I’ve noticed that it idles high around 2k on start up and then it’ll drop to 1500 sometimes other times it will stay at 2k. but then when I start riding it sometimes goes up to 3k and the revs stick for a second before going back down. It also sticks when pulling in the clutch. I was thinking it was a vacuum leak but I’m not entirely sure. Does anyone know what it could be and a fix for the issue?

 

so i was having the same problem it may be the throttle body screw on your carbs try and adjust the air fuel screw also on your carbs new clutch also