I recently bought a 1982 cb900f super sport. The bike was only 800 bucks running with a few hiccups, I couldn't pass it up. I noticed the other day that the warm idle reaches about 3000 rpms. Cold idle is about 1000. I don't believe there is a vacuum leak but when I went to adjust the idle control screw... I couldn't find it. I believe it should be on the clutch (left) side of the bike on the outside carb. Looks like there is just a hallow indented casing that is a little rusty. Does anyone know where I can find the idle control on this bike or has this one seized and been twisted off?