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  1. J

    Idle Rpm on '87 Mariner 150

    I can't seem to get the idle rpm's on this motor down below around 1300 with muffs.I've checked and set the timing acording to the merc, mariner manual as well as sync on carbs.Is it possible that it has been rejetted or is this normal running on muffs. I'm reworking the trailer now so I cant...
  2. J

    home made seafoam

    I've read here somewhere about a way to make your own seafoam.Can anyone remember the ratios of the ingredients or the post? I can't find the seafoam or the deep creep in the area I'm in. Also what is the procedure for the decarb on the engine.<br /><br />Thanks, Jimmy
  3. J

    water problems

    Hello again guy's,I just finished replacing the water pump on the '87 mariner 150.When running on muffs water continuosly run out of prop but never out tell-tale hose even with t-stats removed.With t-stats removed I can start engine and switch off then restart immediatly and water will come out...
  4. J

    upper bearing clearance on lower unit , mariner 150

    Hey guy's, i just removed the lower unit on this '87 mariner 150 to inspect the water pump and noticed a lot of play in the driveshaft. It seems the bearing is loose in the housing causing a lot of side play in the driveshaft and also quite a bit of up and down movement. The bearing is tight on...
  5. J

    mercury rectifier

    Hey guy's, I just found out the rectifier is bad on this 150 mariner. It's the square cube type and accordin to mercurypartsexpress.com this is no longer available for purchase.Do any of you know where I can purchase this new or is there something else I can upgrade to? It's an '87 model mariner...
  6. J

    87' mariner 150

    HELLO GUYS,I'M NEW TO THIS FORUM AND HAVE A QUESTION REGARDING A MARINER 150 THAT WILL NOT RUN.I HAVE DONE SOME CHECKING AND HAVE FOUND THAT I NO FIRE ON THE LEFT BANK OF CYLINDERS AND FIRE ON 2 OF THE CYLINDERS ON THE RIGHT BANK. IS THERE ANYONE THAT CAN GIVE ANY ADVICE FOR CHECKING THE PARTS...
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