So it's been a long haul but I have it running all the airleaks are finally fixed but can't get this tuning down. So what I have is an amal 15mm with the stock 45 jet but a 2 in extension on the intake. New b6hs spark plug set to right gap and new points set to 17* before tdc at.16 gap. The bike turns over first kick with solid compression it idles then ramps up to a real high idle I drive it and kind of dies at prolonged stops I bring it back stand it and idles wild again. I try and adjust idle and then it seems to die real quick. Not sure how to adjust that in series with the fuel mixture screw what do adjust first. Also my plug looks like this when it runs for about 15min. Any thoughts?