Fuel Valve Leak

Discussion in '2-Stroke Engines' started by Jon Kimball, Jul 2, 2008.

  1. Jon Kimball

    Jon Kimball Member

    I recently purchased a 49cc engine off of ebay and I noticed that the fuel valve that connects the tank to the fuel line did not fully screw into the tank and so i t was upside down. I thought nothing of this until it started leaking, very slowly. It wont go in any farther. Any suggestions?


    Last edited by a moderator: Jul 3, 2008

  2. stude13

    stude13 Active Member

    hi jon; you can try some j-b weld. good luck mitch
  3. lukasd2009

    lukasd2009 New Member

    I had to take some heavy duty pliers to it and twist it in ( dont forget the little red washer ).
  4. GasKicker

    GasKicker Member

    Seal the threads with thread tape to stop the leak and position it as you want.
  5. Jon Kimball

    Jon Kimball Member

    Thanks guys, would loctite seal it as well? Thats all i currently have that might work. But if you have any advice on where to by the other sealers that would be appreciated.

  6. GasKicker

    GasKicker Member

    I don't think loctite would seal it. Thread seal tape is cheap and available at Wal-Mart in the plumbing fixtures section. You can ask for it at any hardware store. I'm not sure if auto parts stores carry it but they may. Of course Home depot and Lowes would have it in plumbing.
  7. acronn

    acronn New Member

    Teflon Tape

    I had this problem. I also wanted to reposition the petcock, and all I needed was about 90 degree's less, so I just used about 3 wraps of teflon on the washer only, that made it THICKER, and has sealed and worked perfectly.
  8. Alan

    Alan Member

    The standard white teflon tape melts from fuel. After a few weeks it was goo.
    Get the one that's solvent/fuel proof.