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    dennis john's Avatar
    dennis john Posts: 2, Reputation: 1
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    #1

    Feb 8, 2013, 05:28 PM
    Troubleshoot snowblower backfire through carb when trying to start
    305cc Briggs & Stratton.Backfires through carb when trying to start. Has spark and fresh gas . Used 10 days ago and it worked fine.
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #2

    Feb 8, 2013, 05:58 PM
    Try removing the head and cleaning the head and valves of carbon. On most B&S engines, the teflon coated head gasket is reuseable. Repeat this process every 3 seasons. Use full synthetic 5W-30 engine oil. It will help prevent carbon build-up and allow the engine to start easier in cold weather.
    dennis john's Avatar
    dennis john Posts: 2, Reputation: 1
    New Member
    		  
    #3

    Feb 8, 2013, 06:16 PM
    Why does my Briggs & Stratton snowblower backfire when trying to start
    12 running hours on it. New plug. New gas. Used 10 days ago,worked fine. Won't start now.
    smoothy's Avatar
    smoothy Posts: 25,490, Reputation: 2853
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    #4

    Feb 8, 2013, 06:21 PM
    If it ever sat for long with old gas in it... like over a summer... then the carb needs cleaned well.
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