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Thread: Mercury 40 HP problem....HELP!!

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  1. #1
    Join Date
    Oct 2006
    Location
    Indian Rocks Beach, Florida, United States
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    1,185
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    Had some similar problems w/ a 90 Merc. Ended up being the fuel line from the fuel filter to carbs had broken down and small pieces of rubber had entered the carbs. Mech. said merc engines were bad about the inside of these lines deteriorating because of gasoline, especially in older motors. Mine is a 98. They have since started using a different type of line that does not break down inside.
    You can't finish what you don't start

  2. #2
    Join Date
    Feb 2006
    Location
    The Hills of Eastern Kentucky
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    148
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    It would not hurt a thing to dump a can of sea foam in your tank and see if that helps....If you have an onboard fuel tank chances are you vent will probally located in your gas cap on the boat....

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