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I have a Huskavarna Mondo String trimmer. I have adjusted the Carburetor according to the shop manual and still it has no extended power to cut down weeds. As soon as I start cutting the weeds it bogs down and eventually dies. I have tried moving the High and Low adjustment on the Carb jets but nothing seems to help. I am slightly suspect of the real small tubes that go from the carb to the fuel tank (of a hole in the line) sucking air and weakening the high end RPM's

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  • linwoodsprou Jul 10, 2010

    THere are no blades on a string trimmer and The service manual speaks nothing of a governor.
    I still need help.

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Hi! Just like cars, you may have a vacuum leak. This leak comes from worn vacuum hoses. If you can feel that theres air coming out from the tiny hoses which is almost invisible till you feel that theres air coming out you will have to replace it. This hoses can be both on auto parts supply, also known as carburetor hose or vacuum hose. Hope this helps and have a good one!

Posted on Jul 10, 2010

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Adjust or bend the governor a bit so you get higher rpms. Then sharpen the heck out of the blades and you will be good to go.

Posted on Jul 09, 2010

  • linwoodsprou Jul 10, 2010

    Blades on a string trimmer? Think again.........
    This is a gas/oil mix small engine that has a high and low jet adjustment. Manual says close all the way and open them one turn. The H adjustment controls the high RPM speed. Adjustment seems to have no effect on it. Manual says it should run about 9,000 RPM and 7800 is about the best I can get it to run.


  • Nate Stansfield
    Nate Stansfield Jul 10, 2010

    Oh sorry, I was thinking this was for a mower. If it's a weed trimmer, and it gets boggy, you basically have to pull the carb off, pull it apart, deep clean all the parts and replace the needle and seat.

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