Stihl FS85 fuel leak

Discussion in 'Mechanic and Repair' started by sparechange, Sep 20, 2004.

  1. sparechange

    sparechange LawnSite Member
    Messages: 33

    When not in use, I hang my trimmers vertical on the garage wall. My FS85 has started leaking all of the fuel out of the tank if I leave it for more than a couple of days. It appears to be leaking out of the carburetor but nothing is loose and the fuel line does not appear cracked. Any suggestions?
  2. 0money

    0money LawnSite Member
    from Around
    Messages: 62

    I don't Know how yours is set up but mine will leak around the gas cap when i hang them on the wall. stinks the garage up bad ,wife has a fit.
  3. cariboulou

    cariboulou LawnSite Member
    Messages: 160

    check your fuel cap and tank, this happened to me once on my fs74 trimmer and the fuel tank filler neck was not perfectly flat and the cap couldnt seat perfectly. of course my trimmer was over 5 years old and used semi commercially but a new tank fixed the whole problem. i think it has something to do with the vented fuel caps..i hate those.

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