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  • #1

    Gas Cap screw sizes

    Hey Gang,

    I did try searching first...

    I am wanting to replace the the screws that hold the gas cap onto the tank of my 78 standard. Does anyone know what size they are? Not the ones that hold the actual cap to the square insert, but the ones that attach the insert to the tank.

    Thanks!

    Sean
    1978 XS1100 Standard
    Cafe transformation in progress ...
    Tags: None
  • #2
    take the cap to the hardware store with you kid. Easiest way to get it done
    "If A equals success, then the formula is: A = X + Y + Z. X is work. Y is play. Z is keep your mouth shut." - Albert Einstein

    "Illegitimi non carborundum"-Joseph W. "Vinegar Joe" Stilwell



    1980 LG
    1981 LH

    Comment

    • #3
      Off the top of my head....M4X1.25x5mm
      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

      Comment

      • #4
        They don't make m4x1.5 if its 4mm it'll be x0.7 but I think u r right on m4, 5mm long.
        BARE BONES CHOPPERS: If it don't make it go faster, you don't need it!
        80 XS1100SG(cafe in progress *slowly)

        Comment

        • #5
          Originally posted by daveyg View Post
          They don't make m4x1.5 if its 4mm it'll be x0.7 but I think u r right on m4, 5mm long.
          That's right, I was for some reason just thinking about the pitch of most the other thread on the bike as I was typing (except for those stupid m10x1.25 which are near impossible to find in SS Allen cap heads).
          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

          Comment

          • #6
            Originally posted by natemoen View Post
            ...except for those stupid m10x1.25 which are near impossible to find in SS Allen cap heads...
            Try this guy....

            http://www.allensfasteners.com/default.asp

            No SS, but he does offer some of these in chrome. Yeah, those are very hard to find.
            Fast, Cheap, Reliable... Pick any two

            '78E original owner - resto project
            '78E ???? owner - Modder project FJ forks, 4-piston calipers F/R, 160/80-16 rear tire
            '82 XJ rebuild project
            '80SG restified, red SOLD
            '79F parts...
            '81H more parts...

            Other current bikes:
            '93 XL1200 Anniversary Sportster 85RWHP
            '86 XL883/1200 Chopper
            '82 XL1000 w/1450cc Buell, Baker 6-speed, in-progress project
            Cage: '13 Mustang GT/CS with a few 'custom' touches
            Yep, can't leave nuthin' alone...

            Comment

            • #7
              Originally posted by crazy steve View Post
              Try this guy....

              http://www.allensfasteners.com/default.asp

              No SS, but he does offer some of these in chrome. Yeah, those are very hard to find.
              Chrome and any other version aren't to tough to find, it Is the SS that makes it neat impossible.
              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

              Comment

              • #8
                Nate, that's true of most any fine-thread bolt, metric or standard. Stainless galls easily, and the fine-thread versions have too high of a failure rate...
                Fast, Cheap, Reliable... Pick any two

                '78E original owner - resto project
                '78E ???? owner - Modder project FJ forks, 4-piston calipers F/R, 160/80-16 rear tire
                '82 XJ rebuild project
                '80SG restified, red SOLD
                '79F parts...
                '81H more parts...

                Other current bikes:
                '93 XL1200 Anniversary Sportster 85RWHP
                '86 XL883/1200 Chopper
                '82 XL1000 w/1450cc Buell, Baker 6-speed, in-progress project
                Cage: '13 Mustang GT/CS with a few 'custom' touches
                Yep, can't leave nuthin' alone...

                Comment

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