Brass Cam with Spring
The photos show a brass cam with spring behind it, but here is my question. My bike was running rough and when I finally stopped, I checked this cam and noticed that if I forcibly moved it all to one end, the bike was running much smoother. So I did move it to one end and left it there. When I returned home I looked into it and noticed the spring behind the cam. However, the spring is not attached to the cam, so I suspect it has broken. How I check it is I hold the throttle wide open, rotate the brass cam all the way up and all the way down, but the spring does not move. I even put a dab of white paint to confirm what I was feeling. I assume the spring should be attached to the cam and therefore my spring is broken. All I know is this has to do with throttle and idle. Any help is appreciated.