85 GS1150 carb question

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  • Katarat
    • Jan 2026

    #1

    85 GS1150 carb question

    Are the 2 nipples on the airbox side of the GS1150 carbs, 1 on #1 & 1 on #3, just float bowl vents ? If not what are they ? In the manual it just shows the hose running over the top of the air filter box and ending as best I can tell. Sorry for all the questions, this bike was kind of a put it together kit
  • dorkburger
    Forum LongTimer
    Past Site Supporter
    • Jan 2013
    • 10769
    • Stupid Freehold Boro NJ

    #2
    Yes, vents.
    sigpic
    When consulting the magic 8 ball for advice, one must first ask it "will your answers be accurate?"

    Glen
    -85 1150 es - Plus size supermodel.
    -Rusty old scooter.
    Other things I like to photograph.....instagram.com/gs_junkie
    https://www.instagram.com/glen_brenner/
    https://www.flickr.com/photos/152267...7713345317771/

    Comment

    • Steve
      GS Whisperer
      • Jun 2005
      • 35924
      • southwest oHIo

      #3
      Are the 1150 carbs different or are you not numbering them correctly?

      Carbs are numbered from left to right, as if you were sitting on the bike.

      #1 is under your clutch hand, #4 is under your throttle hand.

      Yes, the nipples (and the hoses that attach to them) on carbs 2 and 4 are, indeed, vents.

      .
      sigpic
      mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
      hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
      #1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
      #2 son: 1980 GS1000G
      Family Portrait
      Siblings and Spouses
      Mom's first ride
      Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
      (Click on my username in the upper-left corner for e-mail info.)

      Comment

      • dorkburger
        Forum LongTimer
        Past Site Supporter
        • Jan 2013
        • 10769
        • Stupid Freehold Boro NJ

        #4
        Steve, you caused me to recheck...yes 1&3 20150901_190332.jpg
        sigpic
        When consulting the magic 8 ball for advice, one must first ask it "will your answers be accurate?"

        Glen
        -85 1150 es - Plus size supermodel.
        -Rusty old scooter.
        Other things I like to photograph.....instagram.com/gs_junkie
        https://www.instagram.com/glen_brenner/
        https://www.flickr.com/photos/152267...7713345317771/

        Comment

        • Katarat

          #5
          I was always told they numbered from left to right sitting on the bike. If youre right then its #2 & #4. Anyway thanks for verifying what I thought. Did you know that if you leave the float limiter off the needle & seat gas will flow out of one of them, I do. That's something you don't want to learn after the carbs are back on the bike. That's what old age back pain will do for you.

          Comment

          • Katarat

            #6
            http://www.mtsac.edu/~cliff/storage/...d_Tutorial.pdf check here for carb numbering, its what I said it was

            Comment

            • Steve
              GS Whisperer
              • Jun 2005
              • 35924
              • southwest oHIo

              #7
              Originally posted by dorkburger
              Steve, you caused me to recheck...yes 1&3
              OK, those carbs are definitely set up a bit different than most other GS carbs.

              Yes, those are indeed carbs 1 and 3, yes, they are still vent hoses, yes, they still do the same function.

              .
              sigpic
              mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
              hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
              #1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
              #2 son: 1980 GS1000G
              Family Portrait
              Siblings and Spouses
              Mom's first ride
              Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
              (Click on my username in the upper-left corner for e-mail info.)

              Comment

              • Guest

                #8
                You should be glad you don't have CA carbs.
                PITA

                Comment

                • Katarat

                  #9
                  Are they any harder to get off and on ? What is the difference out of curiosity ?

                  Comment

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