How do you adjust the needle clip?? how do you get to it. I have a keihin 39mm pwk, and I don't get how to adjust it?? please help, thanks

 

To adjust the needle clip you;
1)unscrew carb cap
2)pull out slide assembly
3)disconnect cable from top of slide
4)turn nut 180 degrees counter clockwise
5)nut and needle should fall out if turned upside down
6)take clip off of needle move it up a notch for more lean or down a notch for more rich
7)slap her back together the same way you took it apart