Do NOT buy jets off of Ebay. A lot are pure counterfeit, or even just cheap copies, but with their numbering system not meaning squat compared with real Keihin jets. Only buy genuine Keihin jets from a reputable shop like Jets-R-Us or the like.
If you have your idle speed screw turned almost all the way in then you are not idling on the idle circuit alone (main/needle is coming in to play which is not good). I would start with a pilot similar to what others have used for your elevation, adjust to see if it is correct for your setup (1 to 2 turns out on the air screw range, and get that sorted before even attempting messing with the needle or main jet. Everything starts with the pilot jet!
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