I am trying to get some help. I posted a week or 2 ago with a problem and now I am following up. Basically I have an XR650L (97) that I just got and I am trying to sort it out. It idles and runs like crap and I am guessing it has to do with the jetting. Basically it has a Mikuni TM38 flatslide in it along with a WB E2 and a K&N pod filter. I am guessing that since it has the pod it is getting to much air, I don't know. The main jet is a 250 w/ a 22.5 pilot. I have done a search but it didn't really help me out. Basically it won't idle and when it does idle it will just all of a sudden make a loud sound and then die on me. I checked the plug FWIW and it was a light grey. Any adivce on jetting would be greatly appreciated. Also for the air/fuel screw how many turns out should it be, i have it at 2.5 right now. Thanks in advance for any help.