Wilsons Sandbox

As per listers suggestions, I went back to the stock needle and move the idle mixture screw to two turns out. In the garage black smoke billowed out of the tale pipe every time I blipped the throttle. So I turned the idle mixture screw down a quarter turn to the stock setting. Smoke went away. Test ride, the bike seemed normal again accelerating easily through all gears and no problems throughout the rpm range. Stopped on a dirt road and turned the idle mixture screw out half a turn. The bike seemed noticeably more powerful,and no problems through the rpm range. Will test ride more tommorrow. Probably will not put the klx needle back in. Mick A10 Stillwater, OK