Recent content by Case

  1. C

    15 HP Mariner - Cold Performance

    Guys or Gals,<br /><br />My '87 15 HP Mariner exhibits poor cold operating performance. It will not idle when cold. It acts like it's starving for fuel. Once the mtor is warm (2 to 3 minutes), it idles and runs fine. It seems to be consistent. When I stop and fish for an hour or so, same...
  2. C

    Mariner - Whats this hole for?

    On my '87 15 Mariner, there is a screw with the word "WASH" cast just above it into the leg. What is it for and how is it used?<br /><br />It looks like a rinse port for the engine, except it isn't very big. I called my friendly dealer and the nice young lady that answered the phone had no...
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    Back to the 15 HP Mariner

    Thanks to you all! I followed your advice, compression checked very good, so I went back into the carb and sure eniugh, the idle jet had a piece of crap in it. Blew it out and problem solved!!! Now I have a new question. I replaced the water pump on general principal (no knowledge of previous...
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    early/mid 1980's 15 HP Mariner won't idle

    Recently aquired a mid 1980's vintage mariner 15 Hp that will not idle. It will start and run at the mid to high RPM range, but forget anything that remotely resembles an idle. The carb has been overhauled and the plugs replaced. I have done the bulb test, but have yet to try the WD 40 in the...
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