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

    Apr 16, 2013, 05:51 AM
    My lawn mower engine suddenly starting smoking excessively. Why?
    My mower engine is a briggs and Stratton 18.5 and started smoking all of a sudden. Why?
    smartypants69's Avatar
    smartypants69 Posts: 1, Reputation: 1
    New Member
     
    #2

    Apr 16, 2013, 09:05 AM
    Maybe its under a lot of stress. Check to see if the weed wacker is pregnant.
    odinn7's Avatar
    odinn7 Posts: 7,691, Reputation: 1547
    Entomology Expert
     
    #3

    Apr 16, 2013, 01:37 PM
    Bad rings probably.
    jsfocke's Avatar
    jsfocke Posts: 310, Reputation: 37
    Full Member
     
    #4

    Apr 17, 2013, 03:21 AM
    Its also possible that the carburetor has let gas leak through and into the crankcase. Check to see if the oil is overfull and smells like gas. If it is then you may just need an oil change and a carburetor cleaning.
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
    Uber Member
     
    #5

    Apr 17, 2013, 05:41 AM
    Quote Originally Posted by smartypants69 View Post
    Maybe its under alot of stress. Check to see if the weed wacker is pregnant.
    Poor start for a first post. Your handle is obviously appropriate. Comments like this are not expected or needed.
    smearcase's Avatar
    smearcase Posts: 2,392, Reputation: 316
    Ultra Member
     
    #6

    Apr 17, 2013, 07:10 PM
    Did you recently change the oil? If so, are you certain that you used the type and weight oil recommended for the engine by the manufacturer?
    crigby's Avatar
    crigby Posts: 4,343, Reputation: 107
    Outdoor Power Equipment Expert
     
    #7

    Apr 25, 2013, 08:18 PM
    Hi,
    Maybe it has blown the head gasket and is sucking oil in through that that point.
    Peace,
    Clarke

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