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GS1000G - Carb Jetting

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    #46
    OK. Been away on vacation and I've missed a lot. I thought I read that you had 1/3 to 1/2 throttle position problems besides a too large main jet for a stock bike? If I remember correctly, you had a jet kit (or adjustable needles from Canada) and it seemed they were set too rich. I'll try to help if needed.
    And on the seventh day,after resting from all that he had done,God went for a ride on his GS!
    Upon seeing that it was good, he went out again on his ZX14! But just a little bit faster!

    Comment


      #47
      Seems we are ok at the minute thanks Keith.
      The needles may be rich but certainly not hugely so, with the new K&N inbox they seem about right. When I put the 115's in I think that should be about perfect, maybe a 117.5 because of the ethanol in the fuel here......

      More of a question is the pilot circuit, it won't run with less than 3 turns on the screws. Very strange. Anyway, I'll be looking at it all as soon as possible & will give you a shout if I need any help. During normal usage the plugs don't look too bad. Interestingly Nessism who lives local to me also needs 3 turns on his 550! Strange huh?

      Dan
      1980 GS1000G - Sold
      1978 GS1000E - Finished!
      1980 GS550E - Fixed & given to a friend
      1983 GS750ES Special - Sold
      2009 KLR 650 - Sold - gone to TX!
      1982 GS1100G - Rebuilt and finished. - Sold
      2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!

      www.parasiticsanalytics.com

      TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/

      Comment


        #48
        I'm not sure why your bike needs the mixture screws set to richer than normal settings. Your very first post, where you mentioned what the mechanic did to the carbs, has me wondering why he did those things.
        Typically, excessive mixture screw adjustment would be a form of compensation for poor fuel flow or a semi-blocked pilot circuit passage somewhere.
        And on the seventh day,after resting from all that he had done,God went for a ride on his GS!
        Upon seeing that it was good, he went out again on his ZX14! But just a little bit faster!

        Comment


          #49
          Weird huh.... I guess without tearing it down I probably will never know!

          I guess I could seafoam it....

          Dan
          1980 GS1000G - Sold
          1978 GS1000E - Finished!
          1980 GS550E - Fixed & given to a friend
          1983 GS750ES Special - Sold
          2009 KLR 650 - Sold - gone to TX!
          1982 GS1100G - Rebuilt and finished. - Sold
          2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!

          www.parasiticsanalytics.com

          TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/

          Comment


            #50
            Bring your bike to me and I'll dip your carbs. Bring an o-ring kit from Mr. Barr. Plus you can get your windshield.\\/
            1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
            1985 GS1150ES stock with 85 Red E bodywork.

            Comment


              #51
              I might take you up on that.... Might need new airbox boots too I guess. I'm going through a crazy month at the moment but I might get to you in October.

              Cheers,

              Dan
              1980 GS1000G - Sold
              1978 GS1000E - Finished!
              1980 GS550E - Fixed & given to a friend
              1983 GS750ES Special - Sold
              2009 KLR 650 - Sold - gone to TX!
              1982 GS1100G - Rebuilt and finished. - Sold
              2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!

              www.parasiticsanalytics.com

              TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/

              Comment


                #52
                Link to continuation thread http://www.thegsresources.com/_forum...d.php?t=117397
                1980 GS1000G - Sold
                1978 GS1000E - Finished!
                1980 GS550E - Fixed & given to a friend
                1983 GS750ES Special - Sold
                2009 KLR 650 - Sold - gone to TX!
                1982 GS1100G - Rebuilt and finished. - Sold
                2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!

                www.parasiticsanalytics.com

                TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/

                Comment

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