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    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?

    #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.
    1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
    1985 GS1150ES stock with 85 Red E bodywork.

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      #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
      GS850GT

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        #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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          #5
          Originally posted by Nessism View Post
          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) My Flickr site http://www.flickr.com/photos/soates50/
          https://farm5.staticflickr.com/4306/35860327946_08fdd555ac_z.jpg

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            #6
            Originally posted by Sandy View Post
            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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              #7
              Originally posted by bwringer View Post
              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.

              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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                #8
                Originally posted by chef1366 View Post
                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
                '85 GS550L - SOLD
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                '82 GS850GL - trusty steed
                '80 GS1100L - son's project bike
                '82 GS1100G - SOLD
                '81 GS1100E - Big Red (daily rider)

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                  #9
                  Originally posted by hikermikem View Post
                  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


                    #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


                      #11
                      Originally posted by bwringer View Post
                      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) My Flickr site http://www.flickr.com/photos/soates50/
                      https://farm5.staticflickr.com/4306/35860327946_08fdd555ac_z.jpg

                      Comment


                        #12
                        Originally posted by hikermikem View Post
                        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
                        GS850GT

                        Comment


                          #13
                          Originally posted by p_s View Post
                          ...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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                            #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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                              #15
                              Originally posted by Sandy View Post
                              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.
                              sigpic[Tom]

                              “The greatest service this country could render the rest of the world would be to put its own house in order and to make of American civilization an example of decency, humanity, and societal success from which others could derive whatever they might find useful to their own purposes.” George Kennan

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