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Service & Maintenance Question

    Fred Bunt
    This is my first experience with Husqvarna and back pack...Answeredescalated
    Service & Maintenance Question posted November 3, 2010 by Fred Bunt, last edited February 10, 2012 by HusqvarnaAnswerArmy Silver, tagged 130BT 
    1040 Views, 2 Comments
    Question:
    This is my first experience with Husqvarna and back pack blowers,(model 130BT) so I may be unduly concened. I followed the instructions carefully and the blower functioned really well. I was surprised how smoothly the engine operated even on idle. Now after about 5 hours of use the engine idle has become quite rough. There is a good deal of vibration at low speed and on idle. Is this normal? Should I be concerned? I adjusted the idle speed but that didn't affect the roughness. I also pulled the spark plug, but it only had a small amount of carbon deposit on the rim -- not the electrode. So I'm puzzled because at high speed the blower works well and vibration is almost non-existent. Could you advise me on what to do -- ? Buntfb

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    Best Answer

    Roger B.

    Hi Fred,

    Thanks for contacting Answer Army.  By design two stroke engines seem to run rougher than four strokes.  However, the carburetor may need adjustments and could be causing some of the rough idling and vibration.  I recommend letting your local Servicing Dealer check the carburetor to see if it is performing correctly.  Please go to www.husqvarna.com to find a Dealer in your area.

    Thanks again for contacting Answer Army!

    Answer

     

    • Roger B.

      Hi Fred,

      Thanks for contacting Answer Army.  By design two stroke engines seem to run rougher than four strokes.  However, the carburetor may need adjustments and could be causing some of the rough idling and vibration.  I recommend letting your local Servicing Dealer check the carburetor to see if it is performing correctly.  Please go to www.husqvarna.com to find a Dealer in your area.

      Thanks again for contacting Answer Army!

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    • Wayne Smith

      "By design two stroke engines seem to run rougher than four strokes"?  What?!? I do not know what "design' you were referring to but I have yet to find a two stroke that runs rougher by design than a four stroke in similiar service. By basic design two strokes have much less reciprocating and rotating mass than a four stroke resulting in a naturally SMOOTHER operating engine. Less rotating mass means exponentially less out of balance forces. Small size, smooth operation and high power to weight is precisely why two strokes have dominated handheld internal combustion driven power tools.

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