Here is the problem: When I'm behind traffic in 4th gear (coasting along) at about 1/4 throttle, just above lugging it and before the bike takes off, there is a spot where the bike won't run smoothly. If I hold the trottle as steady as possible the rev's won't hold steady and the bike is very jerky. I live in the city and I have to ride through a lot of traffic before I get to where I need to be. I would like to smooth out that lower rpm dead spot. I know there is a direction I should be going on the jetting, but have no idea which. Any ideas would help. I moved the blue needle clip up 1 to #3 and it seemed to help a bit, but the problem is still there.