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    snowman2's Avatar
    snowman2 Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Dec 4, 2010, 07:02 AM
    Why does my lawnmower race fast then slow then fast etc..,
    It sounds like its revving itself up at the start line
    cdad's Avatar
    cdad Posts: 12,700, Reputation: 1438
    Internet Research Expert
    		  
    #2

    Dec 4, 2010, 07:49 AM

    Most are controlled by devices call a governor. This regulates the top speed (rpm). If its clogged or dirty you can get the effect your talking about called surging. Be sure your filters are clean and check the throat of the carb.
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