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  • Oip pressure adapter

    I hav three more oil pressure adaptors for the XS & XJ engines.


    $20 each. Made from Stainless Steel for resistance to corrosion and easy machining. Special sized restrictor hole same as original bolt to regulate oil to the primary shaft bearing. To complete the setup you need a 90 degree 1/8" St El and a guage. I can get them for around $12.
    You can't stay young forever, but you can be immature for the rest of your life...

    '78E "Pathfinder" Show bike...
    Lovingly restored by Dave Delzell
    Drilled airbox
    Tkat fork brace
    Hardly mufflers
    late model carbs
    Newer style fuses
    Oil pressure guage
    Custom security system
    Stainless braid brake lines

  • #2
    Oil Pressure Adapter

    Hello Richard,
    Would these allow enough pressure, to be accurate, in a fairing mounted gauge ?

    Thanks, John
    1980 XS1100G "Dolly G" Full Dresser (with a coat of many colors )
    1979 XS1100SF (stock-euro mods planned)
    1984 XV700L Virago (to be hot-modded)
    1983 XJ750MK Midnight Maxim (semi-restored DD)
    1977 XS650D ( patiently awaiting resto)

    Sometimes it takes a whole tank of gas before you can think straight.

    Comment


    • #3
      Fairing mount

      It would still be accurite, but the long tube from there to the fairing would be a deal killer for me. To do that just get an electronic guage from JC Whitney or somewhere and put a "T" there the sending unit is and install an electronic sender for the fairing guage.
      You can't stay young forever, but you can be immature for the rest of your life...

      '78E "Pathfinder" Show bike...
      Lovingly restored by Dave Delzell
      Drilled airbox
      Tkat fork brace
      Hardly mufflers
      late model carbs
      Newer style fuses
      Oil pressure guage
      Custom security system
      Stainless braid brake lines

      Comment


      • #4
        PM Sent

        I am going to supply my own gauge and plumbing to it. I was just wondering if the altitude of the gauge would affect accuracy. Also, I would like to stay away from adding any electrical items if possible.
        Count me in for one adapter bolt, no fitting ,no gauge please.

        Thanxs
        1980 XS1100G "Dolly G" Full Dresser (with a coat of many colors )
        1979 XS1100SF (stock-euro mods planned)
        1984 XV700L Virago (to be hot-modded)
        1983 XJ750MK Midnight Maxim (semi-restored DD)
        1977 XS650D ( patiently awaiting resto)

        Sometimes it takes a whole tank of gas before you can think straight.

        Comment


        • #5
          Altitude

          Being from th northeast, I wasn't aware that there were any places near Pittsburgh with much "altitude". I can't see why altitude would effect the reading as it's a closed system and besides, the guages you get are not calibrated for accuracy anyway unless you pay lots and get the glycerin filled type. The adaptor is designed to be easily seen while riding where I mounted mine.
          You can't stay young forever, but you can be immature for the rest of your life...

          '78E "Pathfinder" Show bike...
          Lovingly restored by Dave Delzell
          Drilled airbox
          Tkat fork brace
          Hardly mufflers
          late model carbs
          Newer style fuses
          Oil pressure guage
          Custom security system
          Stainless braid brake lines

          Comment


          • #6
            Head

            The altitude AKA "head", I am referring to is the actual height of the gauge mounted in the fairing which is approximately 2.5' higher than where Your gauge is mounted on the engine. I will most likely be using liquid filled gauges.

            Only the best for "Street Queen"
            1980 XS1100G "Dolly G" Full Dresser (with a coat of many colors )
            1979 XS1100SF (stock-euro mods planned)
            1984 XV700L Virago (to be hot-modded)
            1983 XJ750MK Midnight Maxim (semi-restored DD)
            1977 XS650D ( patiently awaiting resto)

            Sometimes it takes a whole tank of gas before you can think straight.

            Comment


            • #7
              Height

              The height to creat a problem like that would probably be around 5000 feet. More to the real problem would be the fact that the oil in the long hose to the fairing would cool off considerably and if the line is small would restrict flow causing bad readings. The gage on the adaptor is easily read from the riding position.
              You can't stay young forever, but you can be immature for the rest of your life...

              '78E "Pathfinder" Show bike...
              Lovingly restored by Dave Delzell
              Drilled airbox
              Tkat fork brace
              Hardly mufflers
              late model carbs
              Newer style fuses
              Oil pressure guage
              Custom security system
              Stainless braid brake lines

              Comment


              • #8
                EZ - read

                I will probably try both positions with the gauge in this order:
                1) Engine mounted as shown above in Your post, most likely the most accurate.

                2) Fairing mounted, to compare any difference in accuracy.

                If I get the same reading, as the engine mounted position, in the fairing I will then commence to drill the hole and mount the gauge in the fairing. I prefer to know what's doing what at what RPM's, and this way I can monitor all the gauges.

                Oh,by the way, what is the average oil pressure p.s.i. in a healthy Elevens' engine ?
                1980 XS1100G "Dolly G" Full Dresser (with a coat of many colors )
                1979 XS1100SF (stock-euro mods planned)
                1984 XV700L Virago (to be hot-modded)
                1983 XJ750MK Midnight Maxim (semi-restored DD)
                1977 XS650D ( patiently awaiting resto)

                Sometimes it takes a whole tank of gas before you can think straight.

                Comment


                • #9
                  Reading going to be the same no matter where gauge is located. Is no different than an automotive application whether you run a manual gauge with several feet of copper line or electrical sending unit. Nothing magical here just because it's installed on a scoot.
                  81H Venturer1100 "The Bentley" (on steroids) 97 Yamaha YZ250(age reducer) 92 Honda ST1100 "Twisty"(touring rocket) Age is relative to the number of seconds counted 'airing' out an 85ft. table-top.

                  Comment


                  • #10
                    Oil pressure

                    Pressure is relevant. Temperature, RPM and other things will change it. The actual pressure depends on what pressure is on the spring in the relief. Mine has 42 lbs when it's cold and at higher RPM's when it's hot.
                    You can't stay young forever, but you can be immature for the rest of your life...

                    '78E "Pathfinder" Show bike...
                    Lovingly restored by Dave Delzell
                    Drilled airbox
                    Tkat fork brace
                    Hardly mufflers
                    late model carbs
                    Newer style fuses
                    Oil pressure guage
                    Custom security system
                    Stainless braid brake lines

                    Comment


                    • #11
                      Originally posted by motoman View Post
                      Reading going to be the same no matter where gauge is located. Is no different than an automotive application whether you run a manual gauge with several feet of copper line or electrical sending unit. Nothing magical here just because it's installed on a scoot.
                      Okay...yes I'm probably overthinking this...Thanxs for the headsup

                      Originally posted by planedick View Post
                      Pressure is relevant. Temperature, RPM and other things will change it. The actual pressure depends on what pressure is on the spring in the relief. Mine has 42 lbs when it's cold and at higher RPM's when it's hot.
                      I agree, that's my reasoning for the fairing mount on the gauge so I can get accustomed to "what" the engine is doing "when". Therefore I can note changes as per riding style or load put on the bike.
                      My engine has 20k easy miles on it so when I get it put together and this gauge mod done I'll let you know how many p.s.i. I'm getting.
                      Your figure is a good baseline, I hope I get at least that.

                      Thanxs, John
                      1980 XS1100G "Dolly G" Full Dresser (with a coat of many colors )
                      1979 XS1100SF (stock-euro mods planned)
                      1984 XV700L Virago (to be hot-modded)
                      1983 XJ750MK Midnight Maxim (semi-restored DD)
                      1977 XS650D ( patiently awaiting resto)

                      Sometimes it takes a whole tank of gas before you can think straight.

                      Comment


                      • #12
                        Just remember

                        It only takes a few ounces of pressure to float a bearing, and the idiot light on the bike is set at somewhere around 5 lbs or less.
                        You can't stay young forever, but you can be immature for the rest of your life...

                        '78E "Pathfinder" Show bike...
                        Lovingly restored by Dave Delzell
                        Drilled airbox
                        Tkat fork brace
                        Hardly mufflers
                        late model carbs
                        Newer style fuses
                        Oil pressure guage
                        Custom security system
                        Stainless braid brake lines

                        Comment


                        • #13
                          To be more precise...........takes 7psi oil pressure to "hold" a bearing......
                          81H Venturer1100 "The Bentley" (on steroids) 97 Yamaha YZ250(age reducer) 92 Honda ST1100 "Twisty"(touring rocket) Age is relative to the number of seconds counted 'airing' out an 85ft. table-top.

                          Comment


                          • #14
                            Originally posted by planedick View Post
                            It only takes a few ounces of pressure to float a bearing, and the idiot light on the bike is set at somewhere around 5 lbs or less.
                            Does this mean that when I start the engine pressure builds from the oil pump to activate the oil pressure switch and shut the indicator light off at 5 p.s.i. or so ?

                            If that is the case, the light would also come on only when the pressure in the engine, while running, drops below the 5 p.s.i. or so, correct ?
                            1980 XS1100G "Dolly G" Full Dresser (with a coat of many colors )
                            1979 XS1100SF (stock-euro mods planned)
                            1984 XV700L Virago (to be hot-modded)
                            1983 XJ750MK Midnight Maxim (semi-restored DD)
                            1977 XS650D ( patiently awaiting resto)

                            Sometimes it takes a whole tank of gas before you can think straight.

                            Comment


                            • #15
                              That is correct.
                              Nathan
                              KD9ARL

                              μολὼν λαβέ

                              1978 XS1100E
                              K&N Filter
                              #45 pilot Jet, #137.5 Main Jet
                              OEM Exhaust
                              ATK Fork Brace
                              LED Dash lights
                              Ammeter, Oil Pressure, Oil Temp, and Volt Meters

                              Green Monster Coils
                              SS Brake Lines
                              Vision 550 Auto Tensioner

                              In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

                              Theodore Roosevelt

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