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Stihl HS45 Trimmer Acting up

Discussion in 'Mechanic and Repair' started by matthew horner, Feb 29, 2008.

  1. matthew horner

    matthew horner LawnSite Senior Member
    Messages: 696

    Well, basically, I pulled it out the other day and it is running funny. It will start and idle, but as soon as I go no choke it acts like it is sick, and forget full throttle, it just shuts off.
    Spark plug is clean, fresh gas, clean air filter, and I took the carb off and cleaned it etc.
    I looked for a high speed adjustment on the carb but found nothing, just one screw that seemed to affect the idle only.
    Any ideas on this?
    Thanks,
    Matthew
     
  2. dennys-lawn

    dennys-lawn LawnSite Member
    Messages: 135

    Replace the carburetor. We have the same problem sometimes with ours. Cheaper to replace new than rebuild.
     
  3. yungman

    yungman LawnSite Bronze Member
    from Calif.
    Messages: 1,274

    Check exhaust port for carbon buildup, block muffler?? Not likely but don't hurt. Do that before you pay a penny.

    Good luck
     
  4. matthew horner

    matthew horner LawnSite Senior Member
    Messages: 696

    Good Idea! I will check that out.
    I'm getting to sell the hedgers so I need them running well.
    Matthew
     
  5. matthew horner

    matthew horner LawnSite Senior Member
    Messages: 696

    wow, how did I miss that!?
    They run like new.
    Thanks so much,
    M
     
  6. yungman

    yungman LawnSite Bronze Member
    from Calif.
    Messages: 1,274

    What did you do? carb or exhaust?:confused:
     
  7. matthew horner

    matthew horner LawnSite Senior Member
    Messages: 696

    exhaust screen clogged to the max
     

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