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Best fuel line??

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  • Best fuel line??

    I'm almost positive I have a fuel line issue

    the tank and lines were installed in 2009.

    used some ethanol in the beginning for 3-4 years

    now that the good non-ethanol is easily attainable I only use it.

    swapped my engine from a 94 200 yami to a 99 fuel injected one

    just started having issues 6 months ago.

    narrowed it down to fuel supply line tank to engine.

    What is the best under deck line to replace what I have with.
    1977 Mako 21 200 yamaha[br]PSL Fl[br]

  • #2
    As much as I hated to do it, I went to West Marine and bought the fuel line they carry as it is good for ethanol.

    The fuel line with the lining in it I hear is the worst.
    \'07 Mako 19 bay, sold[br]\'76 Mako 21, sold[br]\'77 Mako 21, dump[br]\'77 Mako 22, sold[br]\'80 Mako 23 WA, sold[br]\'82 Mako 21, sold[br]\'85 Mako 254 currently[br]\'78 J24 USA 292 (sold)[br]\'05 Melges 32 racing sailboat

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    • #3
      Shields A1-15.

      Check to see what you have now. If it's black there should be numbers on the side.
      2007 Everglades 243 250 Suzuki[br]1988 201 Yamaha 200 - Sold[br]1990 261 T/200 SWS - Sold[br]1978 25 225 Johnson - Sold[br]1975 20 85 Merc - Sold[br]Jacksonville, FL[br]

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      • #4
        What I have now is not A1-15 I saw other numbers on it can't remember what they were, it is not lined and it has a red stripe running lengthwise on it not sure of the numbers on it

        I have a piece of the A1-15 (new) I split it open it is lined

        scared to use the lined stuff
        1977 Mako 21 200 yamaha[br]PSL Fl[br]

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        • #5
          quote:


          Originally posted by rolran


          What I have now is not A1-15 I saw other numbers on it can't remember what they were, it is not lined and it has a red stripe running lengthwise on it not sure of the numbers on it

          I have a piece of the A1-15 (new) I split it open it is lined

          scared to use the lined stuff



          The stuff I am using is not lined, black, cannot recall if it had a stripe on it, and when you cut it there are fibers or line looking stuff in it for rigidity.
          \'07 Mako 19 bay, sold[br]\'76 Mako 21, sold[br]\'77 Mako 21, dump[br]\'77 Mako 22, sold[br]\'80 Mako 23 WA, sold[br]\'82 Mako 21, sold[br]\'85 Mako 254 currently[br]\'78 J24 USA 292 (sold)[br]\'05 Melges 32 racing sailboat

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          • #6
            The hose I have is

            "MPI premium fuel SAE J1527 USCG type A1 iso 7840-A1"

            Doesn't say A1-15 just A1 only and its not lined.

            the west marine shields A1-15 is lined I cut that one open also.

            They both have a fiber reinforcement in the middle.
            1977 Mako 21 200 yamaha[br]PSL Fl[br]

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            • #7
              I'm about to change mine out as well. I had a friend tell me the local NAPA sells ethanol resistant line.

              Someone else told me that a local marine store sell some sort of "blue" marine fuel line that comes with a lifetime warranty. Haven't looked much into that.
              1989 Classic Mako 191 - \'Tequila Rose\'

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              • #8
                "Shields" A1-15
                2007 Everglades 243 250 Suzuki[br]1988 201 Yamaha 200 - Sold[br]1990 261 T/200 SWS - Sold[br]1978 25 225 Johnson - Sold[br]1975 20 85 Merc - Sold[br]Jacksonville, FL[br]

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                • #9
                  Myself, I would stay away from the NAPA stuff unless they happen to carry the USCG approved hose.

                  Certain USCG hose ratings have to do with how long the fuel is actually within the hose...as in one rating for fuel supply line, a different rating for filler hose that only contacts fuel for a very short time...then still a different rating for fuel tank vent hose.

                  Yes, automotive fuel hose "may work", but I wouldn't want to explain my choice of hose to an insurance adjuster or the USCG if an accident happens to toast my boat.

                  See the section "fuel line ratings explained".

                  https://www.jamestowndistributors.co....do?docId=1133
                  1992 211 w/175 OptiMax
                  Glen Campbell, Pa.

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                  • #10
                    quote:


                    Originally posted by radioman


                    Myself, I would stay away from the NAPA stuff unless they happen to carry the USCG approved hose.


                    Certain USCG hose ratings have to do with how long the fuel is actually within the hose...as in one rating for fuel supply line, a different rating for filler hose that only contacts fuel for a very short time...then still a different rating for fuel tank vent hose.

                    Yes, automotive fuel hose "may work", but I wouldn't want to explain my choice of hose to an insurance adjuster or the USCG if an accident happens to toast my boat.

                    See the section "fuel line ratings explained".

                    https://www.jamestowndistributors.co....do?docId=1133


                    Appreciate the heads up. I'll definitely look into the A1-15 when I redo my lines this winter.
                    1989 Classic Mako 191 - \'Tequila Rose\'

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                    • #11
                      The brand new Shields A1-15 "un-used" I split open was lined

                      its probably ok if you are sure there is no ethanol used
                      1977 Mako 21 200 yamaha[br]PSL Fl[br]

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                      • #12
                        From one of many sites

                        SAE J1527 Type A1-15 - ISO 7840. Low permeation fuel hose has a plastic barrier veneer with NBR outer layer tube to limit permeation. Polyester reinforced and complies with EPA and CARB low permeation requirements. Weather/UV resistant NBR/PVC cover.

                        Fuel feed - gasoline up to 85% ethanol blended fuels / diesel / bio-diesel all blends
                        2007 Everglades 243 250 Suzuki[br]1988 201 Yamaha 200 - Sold[br]1990 261 T/200 SWS - Sold[br]1978 25 225 Johnson - Sold[br]1975 20 85 Merc - Sold[br]Jacksonville, FL[br]

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                        • #13
                          I have had several problems with the lined hose when working with certain barb connections. It will tear or roll back the lining far to easily and you get premature failure around the Fuel Water separator of the tank fitting itself. I have also seen blistering where gasoline was forced between the lining and the softer cord reinforced inner lining. It is a real pain in the arse to work with.

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