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  1. #1
    New Member
    Join Date
    May 2013
    san antonio, texas
    Model #917254791 craftsman

    Default Craftsman12.5 HP OHV 38" MOWER running ruff when idle

    Craftsman12.5 HP OHV 38" MOWER running ruff when idle. acts like it wants to die

  2. #2
    New Member
    Join Date
    Mar 2013
    IH B275, 2 of IH B414 and a IH 634

    Default Re: Craftsman12.5 HP OHV 38" MOWER running ruff when idle

    I had a problem similar to this with a Briggs & Stratton 15.5HP on a Husqvarna CTH160. When the throttle was set to idle, the revs would be up and down and would not idle smooth and then eventually she would stop. It turned out to be a small amount of rusty colored water in the float bowl of the carburettor, so after a good clean with brake cleaner and an air line, she now runs smooth as a nut.

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