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    wlzfish's Avatar
    wlzfish Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jul 23, 2009, 06:52 PM
    Briggs & Stratton 20 hp Twin II
    Thank you. Mower runs about 15 minutes then dies, then backfires really loud. It won't start up again until the next day. Thank you for your help. Wandas
    crigby's Avatar
    crigby Posts: 4,343, Reputation: 107
    Outdoor Power Equipment Expert
    		  
    #2

    Jul 23, 2009, 09:25 PM

    Hi,
    Time for a new ignition, Briggs calls them armatures. One does both sides, both plugs fire whether they are making power or not.
    Peace,
    Clarke
    fwfmfw's Avatar
    fwfmfw Posts: 8, Reputation: 1
    New Member
    		  
    #3

    May 31, 2011, 07:22 AM
    Replace the in line fuel filter, mine plugged up and did same thing, was not 100% plugged so would run, slow, choke it and go etc, Filter only about three bucks, but sounds like what mine did
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