Fuel supply hose question

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  • Black 550 L

    #1

    Fuel supply hose question

    When the Suzuki Gs were new was the hose a molded one or did it have some sort of spring up by the petcock? If the hose is to long it kinks if I cut it just the right length it is very hard to get it connected and still wants to kink what do most bikes have to make sure fuel flow is not restricted?
  • Guest

    #2
    Buy a 5/16 fuel line from an auto part store. Cut it to length so you can put it on with the tank slightly tilted and ride. Use a hose clamp.

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    • Guest

      #3
      oem fuel line would typically have a spring-type circlip/clamp on it to keep it in place and also a coil-like protection around the hose

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      • Nessism
        Forum LongTimer
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        • Mar 2006
        • 35788
        • Torrance, CA

        #4
        I like using the OE fuel hose. It's 7mm ID and stretches nicely over the petcock nipple - no need for a clamp. If you cut the hose to proper length, like Chef states, it won't kink.
        Ed

        To measure is to know.

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        • Sandy
          Forum Guru
          Past Site Supporter
          • Feb 2004
          • 7504
          • Cranbrook, BC Canada

          #5
          Originally posted by Nessism
          I like using the OE fuel hose. It's 7mm ID and stretches nicely over the petcock nipple - no need for a clamp. If you cut the hose to proper length, like Chef states, it won't kink.
          Where does one get the nice soft black rubber hose that came on these bikes anyway. All I can find locally is either the automotive stuff that is way to thick or the clear plastic stuff that will no doubt go hard. I'm also looking for the OEM style hose for the float bowls drains and vents. I've still got the original on mine and it's actually still nice and flexible and appears in good shape but there is a time (probably ten years ago) when it should just be changed.
          '84 GS750EF (Oct 2015 BOM) '79 GS1000N (June 2007 BOM)

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          • bwringer
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            • Oct 2003
            • 17066
            • Indianapolis

            #6
            Originally posted by Sandy
            Where does one get the nice soft black rubber hose that came on these bikes anyway. All I can find locally is either the automotive stuff that is way to thick or the clear plastic stuff that will no doubt go hard. I'm also looking for the OEM style hose for the float bowls drains and vents. I've still got the original on mine and it's actually still nice and flexible and appears in good shape but there is a time (probably ten years ago) when it should just be changed.
            Order it from Suzuki. The hoses are right there on the fiche with all the other parts. They usually send way more than you need, and you cut it to fit.
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            • Nessism
              Forum LongTimer
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              • Mar 2006
              • 35788
              • Torrance, CA

              #7
              Originally posted by bwringer
              Order it from Suzuki. The hoses are right there on the fiche with all the other parts. They usually send way more than you need, and you cut it to fit.
              Ordered some fuel hose for my 850 and they sent about three feet (1 meter) worth!
              Ed

              To measure is to know.

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              • Guest

                #8
                Originally posted by chef1366
                Buy a 5/16 fuel line from an auto part store. Cut it to length so you can put it on with the tank slightly tilted and ride. Use a hose clamp.
                For what it's worth, I use the 5/16" fuel line from the local napa store - works great & I think it actually lets more fuel flow than the OEM line when using an in-line fuel filter.

                Napa line - 5/16" = 8mm
                OEM line = 7mm

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                • Nessism
                  Forum LongTimer
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                  • Mar 2006
                  • 35788
                  • Torrance, CA

                  #9
                  Originally posted by hikermikem
                  For what it's worth, I use the 5/16" fuel line from the local napa store - works great & I think it actually lets more fuel flow than the OEM line when using an in-line fuel filter.

                  Napa line - 5/16" = 8mm
                  OEM line = 7mm
                  Using automotive line is fine but a clamp is recommended since the petcock nipple is 8mm thus there will not be much interference to seal the connection.
                  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

                  • p_s

                    #10
                    A friend of mine gave me some 7mm fuel line he had been using on his VW. It is so much less trouble than fooling around with clamps every time the tank comes on and off, which is almost a daily affair for me. I'd order some if your bike requires regular tinkering.

                    Comment

                    • Sandy
                      Forum Guru
                      Past Site Supporter
                      • Feb 2004
                      • 7504
                      • Cranbrook, BC Canada

                      #11
                      Originally posted by bwringer
                      Order it from Suzuki. The hoses are right there on the fiche with all the other parts. They usually send way more than you need, and you cut it to fit.
                      Yeah, I checked the fiches before and anything in the 4.5mm hose for the 4 cylinder GSs comes up "no longer available" and anything else crosses to the vent tubes which are too short. I know the hose is the 4.5mm but what part number should I use to get enough for the 4 float bowl drains.
                      '84 GS750EF (Oct 2015 BOM) '79 GS1000N (June 2007 BOM)

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                      • Guest

                        #12
                        Originally posted by hikermikem
                        For what it's worth, I use the 5/16" fuel line from the local napa store - works great & I think it actually lets more fuel flow than the OEM line when using an in-line fuel filter.

                        Napa line - 5/16" = 8mm
                        OEM line = 7mm
                        the fuel flow depends on the size of the opening at the petcock, which is less than 7mm, so the bigger diameter line doesnt help in that regard

                        mind you, i use it anyway

                        Comment

                        • Steve
                          GS Whisperer
                          • Jun 2005
                          • 35925
                          • southwest oHIo

                          #13
                          Originally posted by p_s
                          ...every time the tank comes on and off, which is almost a daily affair for me. ...
                          OK, just out of curiosity ... why are you taking your tank off every day?


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                          • SqDancerLynn1

                            #14
                            For the float bown drains on the VM carbs. It doesn't last maybe 6 months but it is cheap! Aquarium hose & you can get different colors 25 ft for $3-4

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                            • Guest

                              #15
                              Originally posted by Sandy
                              All I can find locally is either the automotive stuff that is way to thick or the clear plastic stuff that will no doubt go hard.
                              Some fuel line is clear, and will last as long as the black stuff. But you pay more for it.

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