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Arrrrggghhh. Pinholes in tank. How to fix?

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    Arrrrggghhh. Pinholes in tank. How to fix?

    After my 78 1000 stopped running on me a couple of weeks ago, I redid the phos acid trick yesterday and shook gravel around inside. Though it wasn't as dramatic as the last time, I did get more rust from the tank. And some pinhole leaks I counted two, but thought there were a couple more that looked suspicious.

    I am looking for the best way to fix these and still get in some riding this year. But with the cold snap here in Utah last week, I don't know if that will happen.

    Thanks.

    #2
    Ed

    To measure is to know.

    Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

    Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

    Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

    KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

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      #3
      i used fiberglass resin (bondo Brand form advance) prepped the tank w/ acid as you have done then used small amounts of resin, letting it dry for an hour between coats rolling the tank around to achive an even coating.
      been running over a year.
      good luck!

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        #4
        Down here in South Africa we have guys repairing auto radiators and fuel tanks. After a small accident with a Yamaha XJ 650 last year, the tank sprang a leak on one of the seams. These guys poured in a rubber-like liquid (after removing the petcock) and let it dry for about a day. Works like a charm.

        Good luck

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          #5
          If you have holes in the tank, that is not good.

          I don't know how it will make your cosmetics look, but "JB WELD" is like an epoxy specifically made to hold while gas is in contact with it. It will act as a seal for the holes.

          As far as if it will remain smooth, im not sure with the details you provided. (if its under the tank, no worries.)

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            #6
            They are on the bottom of the tank

            All of the pinholes are on the bottom of the front left side of the tank.

            Cosmetics aren't really an issue. If someone notices some painted JB Weld gobs there, my first question would be "what the hey are you looking for under my tank?"8-[

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              #7
              JB Weld is a godsend. I have fixed more random sh!t with it...

              Grew up on a farm. The stuff is better than duct tape.

              The problem with pinholes, is that they may be an indicator of more serious problems in the future.

              Comment


                #8
                I've always taken those issues to a rad shop. You get a coating/sealant that is guaranteed forever.

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