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450X Jetting Questions
  • ST310
    Posts:6
    Joined:Sun Nov 08, 2009 6:08 am
    450X Jetting Questions

    by ST310 » Mon Nov 09, 2009 7:22 pm

    Can anyone offer some jetting advise?

    I have a 450X with stage 2 Hot Cam, oversized SS valvs, pro circuit exhaust, air box mods. The current jets are 170 main / 45 pilot. It was running rich, so I changed the needle from notch for from top to notch 3 (dropping it further into the jet, and I changed the fuel/air screw in from 2.25 turns out to 1.5 turns out. I'm hoping this will lean it out, but I am wondering if I should be changing the jetting while I'm at it.
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    wmrice
    Posts:75
    Joined:Sun Apr 08, 2007 3:15 pm

    by wmrice » Tue Nov 10, 2009 5:39 pm

    What needle are you running? Also, where do you ride as far as temperature and elevation?
  • ST310
    Posts:6
    Joined:Sun Nov 08, 2009 6:08 am

    by ST310 » Wed Nov 11, 2009 6:22 am

    JD Red 3rd position.
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