G1000 Mystery needle?

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  • Clayton!

    #1

    G1000 Mystery needle?

    I don't know if I have a major problem or not with this one. I can not find this needle on ANY parts list that I can see. The picture doesn't really show, but this needle has a spring + o-ring and comes up from underneath the carb into the throat of the intake. I believe the carbs to be VM29's since they are off of a 79' 1000N, but since I have zero experience working on these carbs I wouldn't be able to tell the difference. I've talked to a couple local dealers and they either don't know or don't care to know. Let me know if you need more info, I'd like to get this bike going soon so I can work the kinks out before the riding season
  • tkent02
    Forum LongTimer
    Past Site Supporter
    • Jan 2006
    • 35571
    • Near South Park

    #2
    Looks like Mikuni VM 26 which is standard in the USA for a GS 1000 before 1980. That needle is the pilot fuel screw.
    Are you missing some of the fuel screws? Did the tips break off?
    http://img.photobucket.com/albums/v5...tatesMap-1.jpg

    Life is too short to ride an L.

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    • Clayton!

      #3
      One of the tips were broken and jammed all up in there I'm not sure the P.O. knew what he was doing, considering he "just went through the carbs"

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

        #4
        That is very very common, did you get the tip out?
        No, Allie.
        http://img.photobucket.com/albums/v5...tatesMap-1.jpg

        Life is too short to ride an L.

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        • Clayton!

          #5
          I did in fact, also I can't seem to find that particular part on a parts fische. But knowing is half the battle Appreciate the quick response

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

            #6
            Originally posted by Clayton!
            I did in fact, also I can't seem to find that particular part on a parts fische. But knowing is half the battle Appreciate the quick response
            Only way I know to get new screws... http://www.z1enterprises.com/detail.aspx?ID=487
            Ed

            To measure is to know.

            Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

            Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

            Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

            KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

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            • Big T
              Forum LongTimer
              Past Site Supporter
              Super Site Supporter
              • Mar 2005
              • 12391
              • West Slope, OR

              #7
              It doesn't show up on parts fiches because it's "sealed" for EPA purposes

              It is the fuel screw, rest at about 3/4 turn out after you replace the O ring
              1978 GS 1000 (since new)
              1979 GS 1000 (The Fridge, superbike replica project)
              1978 GS 1000 (parts)
              1981 GS 850 (anyone want a project?)
              1981 GPZ 550 (backroad screamer)
              1970 450 Mk IIID (THUMP!)
              2007 DRz 400S
              1999 ATK 490ES
              1994 DR 350SES

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