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Mcculloch strimmer/brush cutter - cuts out when throttle opened

Hi I have a McCulloch strimmer which starts ok but when I open the throttle it just dies. Also I have to keep the choke slightly on to get it to idle. I have replaced the petrol/oil mixture and I am sure that is ok. The shaft seems to spin freely enough. Maybe a mixture problem or the like. Would appreciate some help.

Ritchie

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  • Anonymous Mar 31, 2014

    33cc straight shaft brush cutter what settings on side lever do I have it on to start plus do I need to have throttle handle pressed on?
    Difficulty starting?

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Hi sounds like it could need a diaphram kit in the carby if it has mixture screws one markedl for low speed and one marked h for high speed you can try winding out the low speed screw a bit but if that does not work it will definatly need a kit.

Posted on Jul 25, 2009

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There is a small mesh filter behind the plate by the throttle stop remove the plate clean the filter and all will be well

Posted on Aug 05, 2009

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