Pilot screw

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  • Craig54

    #1

    Pilot screw

    Pilot screw...... is out for lean or rich ???
  • Guest

    #2
    What carb? VM or CV?
    CV out is richening.

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    • Nessism
      Forum LongTimer
      GSResource Superstar
      Past Site Supporter
      Super Site Supporter
      • Mar 2006
      • 35787
      • Torrance, CA

      #3
      Originally posted by chef1366
      What carb? VM or CV?
      CV out is richening.
      ...also, for VM carbs out is richer for the pilot fuel screw but out is lean for the pilot air screw.
      Ed

      To measure is to know.

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      • 1_v8_merc

        #4
        I know on my 82 GS650g (CV carbs), Clock-wise is lean, and counter is rich.

        I start at 2 or 2 1/2 turns out from bottom.
        Damn things are touchy too, i cranked them a tad too rich last week and nearly fouled out my plugs.

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        • Craig54

          #5
          Pilot screw ??

          Originally posted by chef1366
          What carb? VM or CV?
          CV out is richening.
          81 gs 1000g
          Note sure what carbs
          after repacking and putting new ends on my mufflers I fing the plugs are sooting up so I thought I would lean the mixture up by adjusting the screws on top of the carbs that I think are the air pitot screws.
          Am I on the right track or have I lost it.

          Comment

          • Guest

            #6
            Originally posted by Craig54
            81 gs 1000g
            Note sure what carbs
            after repacking and putting new ends on my mufflers I fing the plugs are sooting up so I thought I would lean the mixture up by adjusting the screws on top of the carbs that I think are the air pitot screws.
            Am I on the right track or have I lost it.
            Nope that would be the one. If you're sooting up the plugs the carbs were jetted already for the leaner pipes of you cut off too much air flow.
            I'd get in the carbs and see what's in there.

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            • tkent02
              Forum LongTimer
              Past Site Supporter
              • Jan 2006
              • 35571
              • Near South Park

              #7
              What exactly did you repack?
              http://img.photobucket.com/albums/v5...tatesMap-1.jpg

              Life is too short to ride an L.

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              • Craig54

                #8
                Pilot screw

                Originally posted by tkent02
                What exactly did you repack?
                My old megahones had nothing inside and the end caps had rusted away so I got some aluminium tube drilled some holes in it and wrapped some fiberglass wrap around it and stuck it in the empty megaphone , I the got some aluminium and cut it in to fit the the ends and drilled some holes in it, still pretty loud though,
                so now I guess to air flow is restricted and my plugs are sooting up.
                I thought I could adjust the air srew on top of the carns to lean the mixture out a bit.

                Comment

                • sparki

                  #9
                  that'll sort out the bottom end but what about the mid and top end?... likes been mentioned, open up the carbs and see what jetting / settings are inside. chances are needle and main had been changed for the less restrictive pipe and this will need changing back towards where it was originally

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