1982 gs650

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  • Jitendra
    Forum Newbie
    • Nov 2025
    • 4
    • Whitwell Tennessee
    #1

    1982 gs650

    Hi all,
    bought this 1982 gs650. It fired with starting fluid into the airbox.
    tank is rusted (will clean soon to see if I can save it ).
    trying to see if carbs need clean , which one of these is the fuel line ?
    1 is smaller diameter than 2, thanks
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    • Rich82GS750TZ
      Forum Guru
      Past Site Supporter
      Super Site Supporter
      • Jun 2018
      • 5632
      • Mifflinburg, PA / Land of Tar & Chip
      #2
      The answer to “do the carbs need cleaned?” is nearly always YES, especially if you have a rusty tank.
      BS(CV) carb cleaning /. Rebuilding tutorial (this one by Ed Ness) and a lot more info found on BikeCliffs Website.
      bigger hose is fuel, smaller one is vacuum. The corresponding nipples on the petcock are sized accordingly.

      Welcome to the forum madhouse.
      Links​

        Comment

        • Redman
          Forum LongTimer
          Past Site Supporter
          Super Site Supporter
          • Mar 2004
          • 13759
          • Michigan, west Michigan
          #3
          We should be seeing a fuel petcock somewhere there on bottom of the tank.
          THe vacuum line is the smaller of the two goes on the smaller of the two on the petcock.
          The larger is the fuel line.
          Unless it is the drain line for the fuel guage sender. (I think the 650 has such. but 650 is the model with the most difference from all the others.)

          Had 650G & 850G. GK since 2005. BOTM GK 2024 June, 850G 2015 Sept
          Bikes​

            Comment

            • tom203
              Forum Guru
              Past Site Supporter
              • Aug 2010
              • 8925
              • Norway,Maine
              #4
              Hard to tell from your photo. Fuel line is middle of carb rack. There are two vent hoses.
              try this photo
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              1981 gs650L

              "We are all born ignorant, but you have to work hard to stay stupid" Ben Franklin

                Comment

                • Jitendra
                  Forum Newbie
                  • Nov 2025
                  • 4
                  • Whitwell Tennessee
                  #5
                  Originally posted by Rich82GS750TZ
                  The answer to “do the carbs need cleaned?” is nearly always YES, especially if you have a rusty tank.
                  BS(CV) carb cleaning /. Rebuilding tutorial (this one by Ed Ness) and a lot more info found on BikeCliffs Website.
                  bigger hose is fuel, smaller one is vacuum. The corresponding nipples on the petcock are sized accordingly.

                  Welcome to the forum madhouse.
                  Been looking for carb rebuild tutorials, do you have a link?
                  carbs on mine are way too dirty​
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                  This gallery has 1 photos.

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                    • Nessism
                      Forum LongTimer
                      GSResource Superstar
                      Past Site Supporter
                      Super Site Supporter
                      • Mar 2006
                      • 35808
                      • Torrance, CA
                      #6
                      BikeCliff's Website
                      https://gsarchive.bwringer.com/
                      Suzuki GS motorcycles maintenance and information (GS850GT)


                      Top 10 Newbie Mistakes - The GSResources Forums
                      https://www.thegsresources.com/_forum/forum/technical-forums/general-maintenance/46923-top-10-newbie-mistakes?t=171846
                      1A) (NEW) Trying to diagnose running problems on a bike with an unknown maintenance history. Common maintenance items like clean carbs, properly adjusted valves, no air leaks in the intake system (airbox, carb boots), a clean gas tank (no rust), and a properly functioning petcock are 100% mandatory for the bike to run properly.


                      Mikuni BS/CV and VM O-ring Kits - The GSResources Forums
                      https://www.thegsresources.com/_forum/forum/consumer-information/gs-parts-and-services/1703182-mikuni-bs-cv-and-vm-o-ring-kits#post1703182
                      Since Robertbarr has retired, I'm picking up this valuable service. Mikuni BS/CV Kits Includes - 4 Pilot Screw O-rings - 4 Float Valve O-rings - 4 Choke Plunger Cap O-rings - 12 Transfer Tube and Vent Tee O-rings - 4 Drain Screw O-rings These kits are for the common BS32/34/36 four cylinder bike sets. I don't have experience
                      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

                        Comment

                        • Rich82GS750TZ
                          Forum Guru
                          Past Site Supporter
                          Super Site Supporter
                          • Jun 2018
                          • 5632
                          • Mifflinburg, PA / Land of Tar & Chip
                          #7
                          The links are in my post. Text that is blue indicates a link. You need to left-click with your mouse (or touch with your finger if on mobile) anywhere on the blue text.
                          Links​

                            Comment

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