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    1968 Merc 200, 20 HP, 2-Stroke Outboard - Fuel Pump Check Valve Replacement

    Took your advice and got'em replaced! Thanks for your help!
  2. T

    Early 90s Mariner 2-stroke 15 hp "bogs" on acceleration

    I'd suspect a fuel delivery problem too. I had a similar problem with my 2-stroke Merc. I temporarily removed the fuel line that goes between the output side of the fuel pump and the carburetor and replaced it with a piece of clear vinyl tubing, then ran the engine in a garbage can full of...
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    1968 Merc 200, 20 HP, 2-Stroke Outboard - Fuel Pump Check Valve Replacement

    I need to replace the two check valves in the fuel pump shown. Here is a picture of the two check valves below the diaphragm and gaskets. The check valves are press fit into the fuel pump. They are beveled on one end, opposite of the end shown in the picture. I assume that is to aid in...
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