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  1. #1
    Member
    Join Date
    May 2009
    Location
    Magnolia, AR
    Posts
    545

    2018 250 Pro XS dies when idling

    Ser# 2B529236

    Motor will run out of fuel if I idle a good a distance. Pump primer bulb up and it'll crank right up and idle again until the vst runs out of fuel again. Motor runs perfectly and doesnt run out of fuel at a fast idle or wot. I've changed the primer bulb and fuel filter. Still having problems.

  2. Member
    Join Date
    Jul 2004
    Location
    Penn PA
    Posts
    15,104
    #2
    Rebuild the pulse pump
    Check tank vent or Fuel Demand Valve
    Check all hoses for vacuum leaks



  3. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
    Join Date
    Apr 2008
    Location
    Greenville, SC (US)
    Posts
    94,945
    #3
    Good advise above. Have seen a few "weak" pulse pumps with these symptoms recently.


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