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Fault Diagnosis

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Fault Diagnosis 
     Symptom      Cause      Remedy
    Erratic running 
    Stalling at idling 
    Lack of power 
    High fuel consumption
    Sticking piston: 
      Dirty piston and suction 
      chamber 
      Jet out of centre 
      Bent needle
    Clean 
    
    Re-centre 
    Fit new
    Too rich at idling

    Fuel leak

    Jet gland leakage: 
     Faulty top gland 
     Dirt under top gland washer 
     Faulty bottom gland
    Fit new 
    Clean 
    Fit new
    Float chamber or jet flooding     Incorrect fuel level 
    Dirty or worn float chamber 
       needle valve 
    Punctured float
    Check and reset level

    Clean or renew valve 
    Fit new


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