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

    Jan 13, 2013, 07:59 AM
    Briggs & Strattan 12.5 HP engine
    Mower sat for 6 Months until I fixed Electrical problem. Started rite up, then started blowing white smoke and quit. Let sit for 30 minutes then restarted, ran for a few minutes then same thing. Discovered gas in my oil. Any thoughts.
    hkstroud's Avatar
    hkstroud Posts: 11,929, Reputation: 899
    Home Improvement & Construction Expert
    		  
    #2

    Jan 13, 2013, 08:04 AM
    Stuck carburetor float.
    crigby's Avatar
    crigby Posts: 4,343, Reputation: 107
    Outdoor Power Equipment Expert
    		  
    #3

    Jan 14, 2013, 05:50 PM
    Hi,
    I mostly agree; point of entry is the carb. Could be trash between the inlet needle and seat, but something is preventing the cut off fuel flow. All the white smoke is the thinned out oil being pushed by the rings into the combustion chamber; because it is thinner than needed and the crankcase is overful causing too much pressure.
    Peace,
    Clarke
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