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Fuel hose - what to use ? any clear that doesn't get hard?

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    Fuel hose - what to use ? any clear that doesn't get hard?

    Fuel hose - what to use ? any clear that doesn't get hard?

    Also what size? (Even if I order some of what you might recommend to the question above, I need to get some temporary hose for now)
    Last edited by Andrew Vanis; 05-07-2018, 04:14 PM.
    1981 GS750L - Owned since 1990 when graduated high school and since have been discovering all the things not disclosed by seller.
    1983 GS750E - bought in 2016 as a rough runner to use while rebuilding 81L and then to combine with ES to make one good one
    1983 GS750ES - bought in Toronto in 2015 on a lark as a non-runner, missing front cowling and exhaust - If you have a 1983 750ES front cowling let me know! Blue would be nice

    #2
    Use genuine Suzuki fuel line. It's 7mm whereas most products that you would get in an auto parts store are either 1/4" or 5/16", one of which is too tight, the other too loose requiring a clamp. One package of the Suzuki fuel line will last you a long, long time - there's about 6' of it.

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      #3
      Beware of old stock Suzuki fuel line.
      I thought I'd scored a bargain, but it fell to bits inside a year - split along its length, which would not have been good out on the road. Luckily, it happened during a routine check.
      I don't know what it was; whether it wasn't what it claimed to be (but it was in the right package, with the right numbers, and looked unmolested) or modern fuel mixes just proved too much for it - allied with the natural ageing of rubber.
      I think I'll score some Tygon line for the next installation.
      ---- Dave

      Only a dog knows why a motorcyclist sticks his head out of a car window

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        #4
        No need for NOS or special parts, you can ask your local bike shop or hardware store for any length of fuel-resistant hose in the right diameter. (If you take the hardware store route, really make sure through either documentation or asking one of the clerks).

        Any clear hose, to my knowledge, will harden (as black one will, but not as much).

        When I got some replacement hoses (cut to length from reel) for the vacuum and fuel line, the shop owner made sure to highlight their difference. Apparently they weren't interchangeable.
        #1: 1979 GS 550 EC "Red" – Very first Bike / Overhaul thread        New here? ☛ Read the Top 10 Newbie mistakes thread
        #2: 1978 GS 550 EC "Blue" – Can't make it a donor / "Rebuild" thread     Manuals (and much more): See Cliff's homepage here
        #3: 2014 Moto Guzzi V7 II Racer – One needs a runner while wrenching
        #4: 1980 Moto Guzzi V65C – Something to chill

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          #5
          I prefer OEM fuel line, but whatever you end up with, make sure it is 7mm inside diameter.

          The problem with most automotive hoses you might find is that they are reinforced for higher-pressure pumps found in fuel injection systems. There is no need for that. Besides being thicker, they are less pliable and might not make the corners necessary under the tank.

          As Skinner mentioned, when you buy a hose, there is about 6 feet (probably 2 meters) in the package, which helps offset the price tag.

          .
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            #6
            Clear hose will...hose you. Tygon is the way to go. Motionpro sells 6' sections in a package that most bike shops carry. Made all the difference in my garage not smelling like the gas leaking past the hardened clear vinyl line.

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              #7
              2x on the Tygon! I think Jetsrus sells it as well.
              Last edited by 05Astro; 05-10-2018, 07:21 AM.
              78 Gs 1000, 94 Honda Xr600

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                #8
                tygon is good stuff
                1983 GS 1100 ESD :D

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                  #9
                  There are different grades of Tygon tubing. Only one specific type is rated for gasoline.
                  Last edited by Nessism; 05-10-2018, 04:36 PM.
                  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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                    #10
                    I ran clear tubing from Home Depot for a few months while sorted out my carbs. It held up quite well, but I replaced it with some proper fuel tubing as soon as I could.
                    Jordan

                    1977 Suzuki GS750 (My first bike)
                    2000 Kawasaki ZRX1100
                    1973 BMW R75/5

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                      #11
                      Originally posted by Nessism View Post
                      There are different grades of Tygon tubing. Only one specific type is rated for gasoline.
                      The stuff sold for motorcycle fuel line should be the correct stuff. You can buy anything on the internet, though...no telling what you get sometimes.

                      I also did the clear tubing for a bit - made a mess. I use it for my carb vent lines now. Seems to reduce the gas odors.

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                        #12
                        Tygon® F-4040-A is the type rated for gasoline. It's translucent yellow in color.

                        Specifically designed to handle most fuels and industrial lubricants, it is routinely used with gasoline, kerosene, heating oils, cutting...
                        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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                          #13
                          I picked up 2 feet of 7MM fuel hose from a local shop that specializes in older Volkswagens....carbureted. Cost me a buck...isn't clear...but is new and gasoline rated.....downside is it is made in...er Germany....;-)

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