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    cn175's Avatar
    cn175 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Oct 20, 2009, 04:17 PM
    John Deere stx38 motor sputtering after blades catching and throwing sparks
    I have a John Deere Stx38, and as stated I seem to have a problem with my motor. I just started to mow my yard, and a piece attached near where the grass is thrown was bent in and caught my blade (throwing sparks like crazy) I disengaged my blades and turned the mower off and now my mower engine has gone from strong to sputtering and it sputters black smoke at that. I bent the piece that caught the blade out of the way, does anyone have a solution for getting my motor back up to speed? Any help/suggestions are greatly appreciated.
    crigby's Avatar
    crigby Posts: 4,343, Reputation: 107
    Outdoor Power Equipment Expert
    		  
    #2

    Oct 21, 2009, 09:57 AM

    Hi,
    With black smoke, the indication is that it is running rich, getting too much fuel mixed with the air. Could be a stuck choke, clogged air filter (quite likely if tilted and gas/oil contaminated) or anything that would interfere with the carburetion.
    Peace,
    Clarke
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