idle screw

Hey everyone, new here. I'm a college student in central MA and I grew up working on engines, but I just recently got into working on motorcycles..very cool machines. What I have on my hands is a 1971 cb450 k4. I bought it in decent shape and have been riding it strong for about 4...

I pick up my first bike about a month ago and have been working through some issues. The most recent is that my RPMs are jumping all over the place. Initially I was having an issue with it idling too low. If I was at a light I'd need keep on the throttle a little to avoid stalling out. In an...