Recent content by 252SCH

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    MERCURY COMPRESSION

    I HAVE A 1991 MERCURY 40 HP CLASSIC, I JUST DID A COMPRESSION TEST ON IT, CYLINDER 1 READ 130, 2- READ 130, 3- READ 125, AND 4- READ 120. CAN ANYONE TELL ME WHAT THIS MEANS, AND IF THIS HAS A LOT TO DO WITH WHY MY MOTOR RUNS FINE OUT OF THE WATER, BUT ONCE IN THE WATER IT DOES RUN NO BETTER THAN...
  2. 2

    MERCURY 40 runs great out of the water but in the water its a turtle!

    I have a mercury 40 horse 1991, 4 cyl, 2 carbs, oil injected. i bought this with a bass tracker 3 weeks ago, its been sitting for 3 years and he never drained or winterized anything. it started right up and runs great with the water mufflers on it in my driveway, took it out on the water and...
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