Stihl trimmer starting problem.

Discussion in 'Shop Talk' started by jms1967, Aug 15, 2004.

  1. jms1967

    jms1967 New Member

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    1
    Joined:
    Aug 15, 2004
    Location:
    Pennsylvania
    I'm having difficulty starting my Stihl FS80. When I do get it started, I have to keep the throttle engaged so as not to stall. I changed the spark plug, felt pad, fuel filter and foam. I have at least 70 hours on the machine and has worked very well up until now. Any suggestions?
     
  2. agmantoo

    agmantoo agmantoo Supporter

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    May 22, 2003
    Location:
    Zone 7
    I think you need a carb kit. Its number is RB-66.
    From this site http://m-and-d.com/search.html?id=UxVS9wuu I have gotten good service and the prices are reasonable. Their part number for the RB-66 is ST-615-086
     

  3. Ross

    Ross Moderator Staff Member Supporter

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    Location:
    Ontario
    Did you try changing the gas? Lately I'd have to say gasoline around here has dropped in quality, and I've been using ethenol blends more. Could be my machines are just getting a little older too!
     
  4. joan from zone six

    joan from zone six Well-Known Member

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    May 10, 2002
    Location:
    KY
    maybe you've developed enough friction/drag in the shaft so that torgue produced at dead idle is insufficient - the little engine might simply be stalling
     
  5. babybison

    babybison New Member

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    Aug 17, 2004
    Location:
    MN
    Take the muffler off and take the spark arrester out (looks like a screen). they plug with oil and makes your trimmer not run. Used to work for a Stihl dealer and we would sell these high priced pieces of equiptment and nail them with a break in adjustment fee when the screen would plug up (not my idea though).

    Try it it might work.
     
  6. cowman

    cowman Well-Known Member

    Messages:
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    Aug 23, 2002
    The muffler is probably stopped up. If you don't run the trimmer wide open then it will stop up over time.