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Petcock fuel filter?

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  • #1

    Petcock fuel filter?

    As some of you know, I am "Trying" to get my bike as "like new" as possable While rebuilding my petcocks last night I heard the top fall inside the tank from one of the filters / screens So I decided to fix so it couldn't fall off again. I took it out and tried to run a small pice of wire through the screen on both sides at the top to twist it over the cap to hold it in place. Well the screen riped Do any of you have an extra petcock filter / screen for a 79 SF that I could buy for a few bucks, new one's are $$ And any pointers on how to "permenitly" attach the top that constently baths in gas Thanks
    1979 XS1100 Special (Mad Max, OEM) Current
    1980 XS1100 Special
    1990 V Max
    1982 KZ750 LTD Twin
    1986 700 FZR Yamaha Fazer (faster then expected)
    1979 XS750 Special (my 1st Special)
    1974 CB750-Four



    Past/pres Car's
    1961 Catalina 389/1970 Torino GT 351/1967GTO 12to1 comp./ Roller cam/ T-10/ 456 gear/Tri-power/1967 GTO 400, 1969 Camaro, 1968 Z28, 2001 BMW M Roadster 0 to 60 in 4.5 sec. Jaguar XK8
    Tags: None
  • #2
    No spare filters (that are any good that is...), but I had the same problem on the SG filters; I fixed it by pressing the top in place, then 'spot welding' it with a soldering iron...
    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

    • #3
      I have an XS650 with the identical petcock to the XS1100 standard. I'm sure it's the same plastic pressed in standpipe/screen as the Special. The XS650, being a 360 degree parallel twin, vibrates a good bit more than the XS11. My standpipe vibrated out, just as yours did. I figured it out when I needed "RESERVE" and there was none. I removed the petcock, and carefully pressed the standpipe back in. No hammer, no glue, no welding. I've been riding the bike for several years since, and it's still fine. When you get a replacement, carefully press it in place. If the fit is snug, leave it alone. It will be fine for a very long time, or maybe even forever, as far as you are concerned.
      Marty (in Mississippi)
      XS1100SG
      XS650SK
      XS650SH
      XS650G
      XS6502F
      XS650E

      Comment

      • #4
        Cap

        Originally posted by jetmechmarty View Post
        I have an XS650 with the identical petcock to the XS1100 standard. I'm sure it's the same plastic pressed in standpipe/screen as the Special. The XS650, being a 360 degree parallel twin, vibrates a good bit more than the XS11. My standpipe vibrated out, just as yours did. I figured it out when I needed "RESERVE" and there was none. I removed the petcock, and carefully pressed the standpipe back in. No hammer, no glue, no welding. I've been riding the bike for several years since, and it's still fine. When you get a replacement, carefully press it in place. If the fit is snug, leave it alone. It will be fine for a very long time, or maybe even forever, as far as you are concerned.
        On mime it is the cap that came off, will try the "weild" fix that Steve told me if I can get a used one, as I trashed mine
        1979 XS1100 Special (Mad Max, OEM) Current
        1980 XS1100 Special
        1990 V Max
        1982 KZ750 LTD Twin
        1986 700 FZR Yamaha Fazer (faster then expected)
        1979 XS750 Special (my 1st Special)
        1974 CB750-Four



        Past/pres Car's
        1961 Catalina 389/1970 Torino GT 351/1967GTO 12to1 comp./ Roller cam/ T-10/ 456 gear/Tri-power/1967 GTO 400, 1969 Camaro, 1968 Z28, 2001 BMW M Roadster 0 to 60 in 4.5 sec. Jaguar XK8

        Comment

        • #5
          I have both petcocks off of my '80 standard. I'm going to end up buying some pingels anyway. I can sell 'em to ya. PM me
          ~Jay
          Guilty Ones M.C.
          Manassas, Va.

          1980 Standard G
          2001 CBR 929RR

          Comment

          • #6
            Originally posted by 'OlGuiltyBoy View Post
            I have both petcocks off of my '80 standard. I'm going to end up buying some pingels anyway. I can sell 'em to ya. PM me
            Maybe someone else can say for sure but pretty sure they done interchange between standards and specials.
            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

            • #7
              Originally posted by natemoen View Post
              Maybe someone else can say for sure but pretty sure they don't interchange between standards and specials.
              They don't, not even the filters. Two totally different parts....
              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

              • #8
                Oh sorry. That sucks.
                ~Jay
                Guilty Ones M.C.
                Manassas, Va.

                1980 Standard G
                2001 CBR 929RR

                Comment

                • #9
                  Petcocks from a standard will not fit the Special tank.

                  Marty (in Indianapolis)
                  Marty (in Mississippi)
                  XS1100SG
                  XS650SK
                  XS650SH
                  XS650G
                  XS6502F
                  XS650E

                  Comment

                  • #10
                    Yup, was only talking about the filter tower.
                    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

                    • #11
                      I may be wrong on this, but I thought the towers were held in be pressing against outside of the tank. I know mine are... The lower lip on the filter tower gets squeezed between the petcock and the tank. Unless the hole for the petcock has been enlarged for some reason, it shouldn't possible for them to fall into the tank...
                      1980 XS850SG - Sold
                      1981 XS1100LH Midnight Special (Sold) - purchased 9/29/08
                      Fully Vetterized and Dynojet Kit added, Heated Grips, Truck-Lite LED headlight, Accel Coils, Irridium plugs, TKAT Fork Brace, XS850LH Final Drive & Black SS Brake lines from Chacal.
                      Here's my web page devoted to my bike! XS/XJ User's Manuals there, and the XJ1100 Service Manual and both XS1100 Service manuals (free download!).

                      Whether you think you can, or you think you cannot - You're right.
                      -H. Ford

                      Comment

                      • #12
                        Nope, they can fall out.... BTDT. If you've got a filter that won't stay in the petcock body, try using some 'gas tank repair' epoxy. This will take the fuel exposure.

                        Not a problem on the standards, as those filters are held in with a rivet...
                        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

                        • #13
                          Maybe mine is unique then. The size of the petcock hole on my tank is not big enough to allow the tower to fall off. Just installing the petcock holds the tower on. Maybe it's an LH thing, like the brakes? Do the XJ's have the same problem with the towers falling off?
                          1980 XS850SG - Sold
                          1981 XS1100LH Midnight Special (Sold) - purchased 9/29/08
                          Fully Vetterized and Dynojet Kit added, Heated Grips, Truck-Lite LED headlight, Accel Coils, Irridium plugs, TKAT Fork Brace, XS850LH Final Drive & Black SS Brake lines from Chacal.
                          Here's my web page devoted to my bike! XS/XJ User's Manuals there, and the XJ1100 Service Manual and both XS1100 Service manuals (free download!).

                          Whether you think you can, or you think you cannot - You're right.
                          -H. Ford

                          Comment

                          • #14
                            Maybe mine is unique then.
                            Bug, why would Yammy make a different style petcock for the LH compared to the SH?
                            I know the Midnight Special is 'special' and all, but that doesn't make any sense?!?
                            Part number research reveals:
                            3H3-24500-01-00 same part number for the SH and LH, LG and SG and the 82 XJ
                            Hi, my name is George & I'm a twisty addict!

                            80G (Green paint(PO idea))
                            The Green Monster
                            K&N A/F, TC's fuse block, '81 oil cooler, TC's homemade 4-2 w/Mac Mufflers, Raptor 660 ACCT
                            Got him in '04.
                            bald tire & borrowing parts

                            80SG (Black w/red emblems & calipers)
                            Scarlet
                            K&N A/F, TC's fuse block, WJ5, Shoei bags, Raptor 660 ACCT.
                            Got her in '11
                            Ready for the twisties!

                            81H (previously CPMaynard's)
                            Hugo
                            Full Venturer, Indigo Blue with B/W painted tank.
                            Cold weather ride

                            Comment

                            • #15
                              The tower on my 79 Special has a raised lip that is a recessed fit into the petcock. The hole on my fuel tank is too small to let this lip thru and up into the tank.

                              2H7 (79) owned since '89
                              3H3 owned since '06

                              "If it ain't broke, modify it"

                              ☮

                              Comment

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