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Thread: Mercury 40 4 stroke

  1. #11
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    Four stroke carbs ( some of them) actually have an acclerator pump on them, when you jump on the throttle a plunger is depressed and fuel is forced into a passage through the carb to help with take off, its possible the pump which is part of the carb but serviceable may have a bad gasket or diaphragm causing a leak. Please take a picture of where the fuel is coming out of for a better suggestion of a fix
    Tom

    "The reason I play Golf.....there are no broke down boats on a Golf Course"

  2. #12
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    Still shots doesn't show it but it's right between were the carbs marry together does it in sync on all the carbs something tells me that there should be a atmospheric vent somewhere

    Sent from my SM-G920V using Tapatalk

  3. #13
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    Sorry, can't make out anything with these pictures, wish I could help
    Tom

    "The reason I play Golf.....there are no broke down boats on a Golf Course"

  4. #14
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    Well the guy took the boat out last week said it hasn't ever ran this good before so I guess the fuel spitting is only because it wasn't running and i was flooding it out

  5. #15
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    Dirt or varnish under the needle on the seat would cause that, Seafoam in every tank of gas helps eliminate that problem
    Tom

    "The reason I play Golf.....there are no broke down boats on a Golf Course"
    Likes crappiemax, wannabe fisherman LIKED above post

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