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  1. #1

    Default Loosing prime at low rpm

    2003 Mercury looses prime at low rpms- runs good at full throttle. Changed the lines and priming bulb from tank to motor. I can keep it running with a few pumps when I hear it stalling. Only happens about every twenty minutes when Iím trolling anyone out there ever have same problem ?

  2. #2

    Default Re: Loosing prime at low rpm

    Sorry my first post just joined. It’s a 2003 Mercury 125 hp. Thanks

  3. #3

    Default Re: Loosing prime at low rpm

    Probably the fuel pump or air leak somewhere

  4. #4
    Join Date
    Apr 2016
    barnegat NJ

    Default Re: Loosing prime at low rpm

    Have fuel pressure checked

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