Stihl fs 120 trimmer

Discussion in 'Mechanic and Repair' started by charlie mo, Aug 31, 2010.

  1. charlie mo

    charlie mo LawnSite Member
    from troy mo
    Messages: 6

    I am having a problem with my stihl fs120 trimmer. After you start the trimmer it will run for a little time an then quit. It then won't start. I have rebuilt the carburetor,replace the fuel filter,replaced fuel lines and used fresh gas mix. Any help on whats wrong. Also does anyone know what type carburetor or make is on the fs120?

    Thank you for any help you can give me. Charlie
  2. lawnwizards

    lawnwizards LawnSite Silver Member
    Messages: 2,439

    have you checked the spark arrestor in the muffler? mine also seems to be clogged.
  3. ed2hess

    ed2hess LawnSite Fanatic
    Messages: 14,196

    Does it have spark after it dies?

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