Idleing way to high 06 cbr1000 please some one help
So I just bought a 06 cbr 1000 that has custom straight exhaust, but it has a sort of baffle in it, just no packing. It was idling fine,but once it got colder out, I got on it and it wouldn't drop any lower than 2 grand. I then tried adjusting the idle, it helped for about two blocks then it was right back to 2 grand. I had to ride the clutch to keep the idle down at stop signs. When i made it home i tried backing the idle screw out again it was 2 full turns and it barley affected it. Please some one give me some ideas.