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    Need new fuel hose, but there is a catch?

    My fuel hose has managed to sprout legs and run away from me. I found this out the hard way when I started my bike (nothing happened), then turned the petcock to prime and fuel poured out everywhere

    Now, as I recall, my fuel hose had a little metal piece on the end that mated with the petcock. Here is the petcock:

    Is there any place I can purchase a hose with the proper end to it or do I need to get an entirely new petcock (which probably isn't a bad idea anyway)?

    Thanks!

    #2
    The petcock should have a barbed nipple on the end that the hose slides over. Looks like your petcock came apart, time for a new one.
    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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      #3
      well that solves my problem

      for the fuel and vent hoses - what inner/outer diameters do i need? i checked BikeCliff's holy bible of GS work, which lists 8mm and 5mm (5/16" and 3/16"), respectively, but are this inner or outer diameters? I just want to make sure I pick up the right hose sizes.

      Comment


        #4
        Have you tried a piece of brass tubing from a hobby supply store and cut it and flare the end?

        Eric

        Comment


          #5
          Originally posted by 67fire View Post
          Have you tried a piece of brass tubing from a hobby supply store and cut it and flare the end?

          Eric
          Bad idea here Eric, sorry. We are talking about gas here so don't monkey around with ghetto fixes.

          The factory fuel line is 7mm ID. Some people use 5/16” automotive fuel line but in my experience it’s a fat hose and you should use a hose clamp since the barb itself is 8mm and there is very little interference. I prefer the stock Suzuki fuel line. If you order some they will send enough for several bikes so it’s not a bad value.
          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


            #6
            OK, I run 3/8" on my scooter...
            You will see it if you are going on the Shasta trip.
            It is not like the bike has a fuel pump, it is gravity fed.
            Hasn't leaked in over 28 years.

            Eric

            Comment


              #7
              Z1 sells some 1/4" id fuel tubing that work well. Don't need any clamps with it and it fit's the petcock better that the 5/16" tubing.

              Comment


                #8
                For what's worth, I use 5/16" fuel line, available from any auto parts store for my fuel line... I also use hose clamps at each end.

                I had a petcock that did the same thing as yours, the brass nipple came out of the body (it's pressed in & should stay put!).

                Time for a new OEM petcock, about $45.
                '85 GS550L - SOLD
                '85 GS550E - SOLD
                '82 GS650GL - SOLD
                '81 GS750L - SOLD
                '82 GS850GL - trusty steed
                '80 GS1100L - son's project bike
                '82 GS1100G - SOLD
                '81 GS1100E - Big Red (daily rider)

                Comment


                  #9
                  I'm with Eric. It's a motorcycle, not the spaceshuttle (no offense Ed). Whatever works and doesn't leak. You just need to make sure it's a tight and solid fix. I've glued brass tubes into old fuel taps (petcocks) and they work fine.

                  MacGyver would've used chewing gum and a rubber band.

                  Comment


                    #10
                    Originally posted by Zooks View Post
                    I'm with Eric. It's a motorcycle, not the spaceshuttle (no offense Ed). Whatever works and doesn't leak. You just need to make sure it's a tight and solid fix. I've glued brass tubes into old fuel taps (petcocks) and they work fine.

                    MacGyver would've used chewing gum and a rubber band.
                    Remember when the Space Shuttle exploded? Leaking fuel was the cause.

                    Repairing a petcock with glue is just plain dumb. Do what you want but I would never suggest such a fix to people that may not understand the risks.
                    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


                      #11
                      Originally posted by Nessism View Post
                      Remember when the Space Shuttle exploded? Leaking fuel was the cause.

                      Repairing a petcock with glue is just plain dumb. Do what you want but I would never suggest such a fix to people that may not understand the risks.
                      I'm obviously using glue impervious to fuel attack not hobby glue from the local kindergaten.

                      Also, other people are responsible for their own actions. If their bikes unsafe it has nothing to do with me. I'm not too worried about a catastrophic spaceshuttle type explosion from a GS either. Even the 'mythbusters' would have a hard time doing that.

                      Relax man. When you get down off that high horse I'll buy you a beer.

                      Comment


                        #12
                        i'm going with a new petcock. someone here said shortcuts are just longcuts. may as well fix it right the first time and not have to worry about it for another 20+ years

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