I have done quite a bit of searching but have not found the info I need. If you have a minute to help me out I would appreciate it. My bike is an 81 xs400 with vm30's I am running K&N pods and 2 into 2 exhaust. I am running 150 main jets and 25 pilots. The air screw seems to work best at 1 turn out from stop. The clip is on the middle slot on the needle. I enclosed some pictures of my setup. I also have a link to a video of the problem In the video you can see if I blip the throttle from an idle id stumble and or dies, but If I blip it from a high idle or slightly higher rpm it gives me much better throttle response. at all other RPMs throttle response is decent. Any help would be appreciated. I just didnt want to spend any unnecessary money on jets in the wrong direction. Thanks again. Let me know if you need more info.
Pics.....
Video.....
http://www.youtube.com/watch?v=a4uQfdFEPvE&feature=plcp
Pics.....
Video.....
http://www.youtube.com/watch?v=a4uQfdFEPvE&feature=plcp