Currently, I cant tell if something is broken, breaking or needs adjustment. What's been happening is that the bike is getting harder to shift. I can pull the handle in, but can't move the lever with my foot. Sometimes I can't get into neutral at all. Sometimes, usually when cold, it seems the bike wants to move forward with the handle pulled all the way in. I've seen a number of instructions on HOW to adjust a clutch, but not WHEN. What does shifting feel like if it needs adjustment? Does it make a noise?