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    MERC120HP BLACK EXHAUST

    I'VE JUST RECENTLY REPLACED THE MANIFOLD GASKETS ON MY 76 120HP MERCUISER 4 CYL. I WAS TAKING IN AIR. EVER SINCE MY ENGINE HAS BEEN BLOWING BLACK SMOKE. IT STANDS IN WATER AND GETS SO BAD THAT IT LEAVES A RING AROUND THE BOAT WHEN SITTING IDLE IN THE LAKE. I ALSO HAVE A FLAT SPOT WHEN TRYING...
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    1988 15OHP MERCURY BLACKMAX

    I JUST RECENTLY BOUGHT A USED 1988 18' GLASSTREAM BOAT WITH A MERCURY 150HP BLACK MAX.I HAVE A LITTLE PROBLEM WITH A FIRING DISORDER.<br />3 OF MY CYLINDERS ARE NOT FIRING ON THE SAME SIDE OF THE BLOCK AND PLUGS ARE NEW, PLUG WIRES AND COILS ARE NEW. I JUST CAN'T SEEM TO PINPOINT THE PROBLEM. I...
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