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Carb drain bolt leaking. Can't seem to get it to stop.

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  • Carb drain bolt leaking. Can't seem to get it to stop.

    78E. Carb #1 bowl drain simply won't stop weeping gas. I made a new "gasket" from gasket material last year and it has helped some. I cant see any cracks.. Any input before I get silly and use some sort of sealer on the bolt??
    1) Fire up Internet Explorer
    2) http://www.yahoo.com
    3) type "www.mapquest.com" into the Yahoo search page.
    4) go about day as VP managing multi-million dollar financial contracts.

  • #2
    carb bowl drain

    I should have the copper or aluminum ones off the XS650, think they are the same PM me
    76 XS650 C ROADSTER
    80 XS650 G Special II
    https://ibb.co/album/icbGgF
    80 XS 1100 SG
    81 XS 1100LH/SH DARKHORSE
    https://tinyurl.com/k6nzvtw
    AKA; Don'e, UD, Unca Don'e

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    • #3
      drain screw

      have you fitted a new o ring seal to the screw ?
      The old ones are the best 9000 miles from new and rising
      got a Honda VF1000f 1984 for the summer in the United Kingdom.Wow its Fast,Too fast for Me

      1982 Xj1100J Maxim US Specfast keeps going
      1984 VF1000F Interceptor UK need repair sticking pro link joint, off the road currently but in a newly built 17ft wooden garage, just got to finish it

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      • #4
        Originally posted by windysolar1 View Post
        have you fitted a new o ring seal to the screw ?
        The 78 carbs don't use that type drain set-up, they have an metal crush washer.
        2H7 (79) owned since '89
        3H3 owned since '06

        "If it ain't broke, modify it"

        ☮

        Comment


        • #5
          drain screw

          you keep your l plates for life
          The old ones are the best 9000 miles from new and rising
          got a Honda VF1000f 1984 for the summer in the United Kingdom.Wow its Fast,Too fast for Me

          1982 Xj1100J Maxim US Specfast keeps going
          1984 VF1000F Interceptor UK need repair sticking pro link joint, off the road currently but in a newly built 17ft wooden garage, just got to finish it

          Comment


          • #6
            Copper Washer

            Buy a copper or aluminum washer from Home Depot, Lowe's, or Ace Hardware. Take the drain screw with you for a match. If the leak is being caused by the gasket, either of these will stop it.

            MP
            1981 XS1100H Venturer
            K&N Air Filter
            ACCT
            Custom Paint by Deitz
            Geezer Rectifier/Regulator
            Chacal Stainless Steel Braided Brake Lines
            Chrome Front Rotor & Caliper Covers
            Stebel Nautilus Horn
            EBC Front Rotors
            Limie Accent Moves On In 2015

            Mike

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            • #7
              You can find new crush washer at any auto parts store, just take your old one with you or your bolt for sizing. They can be reused but at some point they get too crushed and have to be replaced every once in a while.
              '79 XS11 F
              Stock except K&N

              '79 XS11 SF
              Stock, no title.

              '84 Chevy K-10 "Big Blue"
              GM 350, Muncie SM465, NP208, GM 10 Bolt with 3.42gears turnin 31x10.5 Baja Claws

              "What they do have is an implacable, unrelenting presence and movement that bespeaks massive power lurking behind paint and chrome. They don't wail like a screeching ninja, the don't rumble like a harley. They just growl like a spactic, stressed out badger waiting to rip your face off and eat your soul." Trainzz~RIP~

              Comment


              • #8
                Sorry for the late reply.. lol. Been a busy evening.

                I *DID* take my bolt and old washer all over town last fall. NOBODY had anything remotely similar. ACE hardware suggested a plain old metric thick washer. lol.

                I have the original crush washer with a hand-cut fiber one above that.

                I will shoot some PMs out at suggested above.
                1) Fire up Internet Explorer
                2) http://www.yahoo.com
                3) type "www.mapquest.com" into the Yahoo search page.
                4) go about day as VP managing multi-million dollar financial contracts.

                Comment


                • #9
                  Try JUST the fiber washer, or heat the old crush washer red hot with a propane torch, dunk it in oil, and put it back on. The TWO would allow the gas to seep past the inside threads on the bolt, and leak.
                  Ray Matteis
                  KE6NHG
                  XS1100 E '78 (winter project)
                  XS1100 SF Bob Jones worked on it!

                  Comment


                  • #10
                    Ditto, one or the other, not both. Copper or aluminum washer is best, fiber in a pinch. Next trip to the auto parts store, try their misc. brake parts selector kit... think banjo bolt sealing washers, just like on the brake hose fittings.
                    '78 E "Stormbringer"

                    Purrs like a kitten, roars like a lion, runs like a gazelle (being chased by a cheetah).

                    pics http://s1209.photobucket.com/albums/...tormbringer45/

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                    • #11
                      also, what might seem like a bolt leak, might be the fuel tee(as in my case), there was a drip from number 3 bowl, but I traced it back to a cracked and leaking tee...
                      Nick

                      1979 XS11 F,Yamaha fairings w/hard bags, TC's fuse box, K&N air filter

                      1982 Virago 750 (it's alive!)

                      1979 XS 11 F, Windjammer IV, Samsonite luggage cases(another rescue)

                      Comment


                      • #12
                        Originally posted by Diskman01 View Post
                        Sorry for the late reply.. lol. Been a busy evening.

                        I *DID* take my bolt and old washer all over town last fall. NOBODY had anything remotely similar. ACE hardware suggested a plain old metric thick washer. lol.

                        I have the original crush washer with a hand-cut fiber one above that.

                        I will shoot some PMs out at suggested above.
                        IDK what stores you stopped at but just an FYI, most of the guy at Autozone done know the difference between a dip stick tube and a hole in the ground. The Advanced Auto guys are better and the Napa guys are about the best IMO. I know all of the mentioned have them, you have to go to their hardware section and paw through it. If you just asked the kid at the counter and got a funny look then try asking an older guy working. The crush washers are usually near or on the same rack as the universal oil pan bolts. Hope that helps. I wouldnt waste my time at any of home/hardware stores.
                        Last edited by WMarshy; 06-25-2013, 07:44 PM.
                        '79 XS11 F
                        Stock except K&N

                        '79 XS11 SF
                        Stock, no title.

                        '84 Chevy K-10 "Big Blue"
                        GM 350, Muncie SM465, NP208, GM 10 Bolt with 3.42gears turnin 31x10.5 Baja Claws

                        "What they do have is an implacable, unrelenting presence and movement that bespeaks massive power lurking behind paint and chrome. They don't wail like a screeching ninja, the don't rumble like a harley. They just growl like a spactic, stressed out badger waiting to rip your face off and eat your soul." Trainzz~RIP~

                        Comment


                        • #13
                          One other thing you might check is the sealing faces of the bowl and bolt. Someone with a carelessly applied screwdriver, (trying to pry the washer off, perhaps?) could have put a gouge in the sealing face, especially on the bowl, it being aluminum and all.
                          Not a common problem, but while you have the bowl off, it wouldn't hurt to look at it.

                          CZ

                          Comment


                          • #14
                            Originally posted by CaptonZap View Post
                            One other thing you might check is the sealing faces of the bowl and bolt. Someone with a carelessly applied screwdriver, (trying to pry the washer off, perhaps?) could have put a gouge in the sealing face, especially on the bowl, it being aluminum and all.
                            Not a common problem, but while you have the bowl off, it wouldn't hurt to look at it.

                            CZ
                            Ya. I was gonna re-check the surfaces. Possibly smooth them all with some 1000 grit on a sheet of glass. Just to make sure everything is nice and flat.
                            1) Fire up Internet Explorer
                            2) http://www.yahoo.com
                            3) type "www.mapquest.com" into the Yahoo search page.
                            4) go about day as VP managing multi-million dollar financial contracts.

                            Comment

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