1978 GS1000 Carb vent routing

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  • Anonymous

    #1

    1978 GS1000 Carb vent routing

    Sorry, I did a search on this one and all of the posts seem to be for other model years. Where are my vent tubes ( The brass fittings on the left hand side of the 2,3+4 carbs) on this bike supposed to go? Right now # 2 is going to my fuel petcock and the vent tube from 3 is routed to #4. The bike runs horribly and #4 cylinder is not firing at all. Thanks in advance!
  • robinjo

    #2
    Computer screw-up, sorry.

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    • robinjo

      #3

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      • earlfor
        Forum LongTimer
        Charter Member
        GSResource Superstar
        Past Site Supporter
        • May 2002
        • 42413
        • off grid cabin 1/24/26 7pm

        #4
        Re: 1978 GS1000 Carb vent routing

        The brass fitting on #2 goes to atomsphere, open vent. Fitting on #3 goes to the vacuum fitting on the petock. Fitting on #4 goes to atomsphere, open vent.

        Earl


        Originally posted by jandiel
        Sorry, I did a search on this one and all of the posts seem to be for other model years. Where are my vent tubes ( The brass fittings on the left hand side of the 2,3+4 carbs) on this bike supposed to go? Right now # 2 is going to my fuel petcock and the vent tube from 3 is routed to #4. The bike runs horribly and #4 cylinder is not firing at all. Thanks in advance!
        Komorebi-The light filtering through the trees.

        I would rather sit on a pumpkin and have it all to myself than be crowded on a velvet cushion. H.D.T.

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        • KEITH KRAUSE
          Forum Guru
          Charter Member
          GSResource Superstar
          Past Site Supporter
          • Oct 2002
          • 8862
          • Angeles Forest, So.Calif./Red rocks of Southern Utah.

          #5
          Re: 1978 GS1000 Carb vent routing

          Originally posted by earlfor
          The brass fitting on #2 goes to atomsphere, open vent. Fitting on #3 goes to the vacuum fitting on the petock. Fitting on #4 goes to atomsphere, open vent.

          Earl


          Originally posted by jandiel
          Sorry, I did a search on this one and all of the posts seem to be for other model years. Where are my vent tubes ( The brass fittings on the left hand side of the 2,3+4 carbs) on this bike supposed to go? Right now # 2 is going to my fuel petcock and the vent tube from 3 is routed to #4. The bike runs horribly and #4 cylinder is not firing at all. Thanks in advance!
          Like Earl said. Your present hose routing would certainly cause trouble.
          You would have no vacuum for fuel flow from the petcock (except prime) and none of the float chambers would be vented correctly, causing fuel starvation, even in prime.
          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!

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          • Anonymous

            #6
            Thanks!

            Thanks Everybody! Bike fired right up!

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