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Husqvarna 455 Surging/ Wavering full throttle

Discussion in 'Chainsaw' started by jeffbecky1, Oct 22, 2019.

  1. jeffbecky1

    jeffbecky1 ArboristSite Operative

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    I have a Husqvarna 455 Surging/ Wavering at full throttle I changed hoses and filt cleaned carb. What is the problem?
     
  2. Agent smith

    Agent smith ArboristSite Member

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    Sounds like your high speed needle is to lean or youre sucking air somewhere ( crank seals, crankcase gaskets or intake manifold). If the carb is set properly then it needs vac/ pressure tested because an air leak is likely the problem
     
  3. jeffbecky1

    jeffbecky1 ArboristSite Operative

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    I changed the carb and it runs great now
     

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