I have a 2 stroke motor with an NT high speed carburetor. I can't adjust this thing right. I've tried adjusting the c-clip on every one of the notches on the jet needle. Still doesn't work right. It'll go about 10 miles an hour and if I try accelerating it all the way it just decelerates more! Also, I don't know if this is a problem, but I can't get the idle just right. If I keep revving it it'll idle, but if I don't touch it, it'll turn off. I can't push the idle screw in all the way because it knocks into the slide and pushes it up. I took a video to show what I mean: http://www.youtube.com/watch?v=zDuXU01DsRw&feature=youtu.be can anyone help me?