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  1. #1
    Member
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    Apr 2008
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    Stanley
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    548

    Primer bulb won't pump up

    The primer bulb will not pump up on my new 250 Pro XS. It is the original fuel line on my boat (2001) The motor still starts and runs great. I replaced it today and it still won't pump up. I know when you turn the key on you can hear what sounds like an electric fuel pump priming the motor so maybe you don't even need the bulb. Can anyone explain this? Thanks

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  3. Member
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    Jul 2007
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    Aurora
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    #2

    Re: Primer bulb won't pump up (TritonKTB)

    Make sure you hold it with the arrow pointing up. Helps make the check valves work easier. BTW use only a genuine Mercury or Quicksilver brand primer bulb

  4. Mercury - 3 Liter Moderator EuropeanAM's Avatar
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    Greenville, SC (US)
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    #3

    Re: Primer bulb won't pump up (ssimpala71)

    +1

    If it still won't prime up, get it in and get it fixed. You'll eventually have a problem on a nice hot day, in the blazing sun, after you've fished your last hole... and the motor won't want to "get you home".



    Dual Mercury Master Technician- for Mercury Outboards, Racing & Mercruiser Sterndrives in Greenville, SC.
    Still consider myself a "Marine Apprentice" after 38 years (learn something new every day).
    Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor

  5. Member
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    #4

    Re: Primer bulb won't pump up (TritonKTB)

    Tilting the bulb up worked like a charm.
    Thanks

  6. Member
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    #5

    Re: Primer bulb won't pump up (TritonKTB)

    SWEEEET

  7. Member
    Join Date
    Feb 2005
    Location
    Yuba City, CA
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    2,458
    #6

    Re: Primer bulb won't pump up (ssimpala71)

    I found the last two times out, I didn't have any priming with the bulb. I squeezed it for who knows how long, and finally pulled the hoses off and got it going. What I found was that the hose from the tank had some small cracks from where the hose clamp had been placed. I cut this small section out, and almost immediately had fuel when pumping the bulb. I figure it was sucking air from a small crack in the hose. Anyways it seems to have cured my issue

  8. Mercury - 3 Liter Moderator EuropeanAM's Avatar
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    #7

    Re: Primer bulb won't pump up (492slayer)

    Great! I would recommend that you ward off a few future headaches by replacing the fuel line from the tank to the ball, new ball (unless you very recently replaced), and new line from ball to engine.

    Recommend you use ONLY OEM Mercury or Quicksilver fuel line & bulb.

    This may save you a day of trouble on the water... and it will give you a little assurance that you aren't damaging the pulse fuel pump check valves (they do NOT take kindly to fuel restrictions).





    Dual Mercury Master Technician- for Mercury Outboards, Racing & Mercruiser Sterndrives in Greenville, SC.
    Still consider myself a "Marine Apprentice" after 38 years (learn something new every day).
    Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor

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