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  1. W

    Pontoon steering problem

    I have a new Bennington 20' pontoon w/ 90 HP Merc 4-stroke. The boat steers extremely hard to the left, if I let go of the wheel the boat pulls hard to the right. Standing behind the engine the trailing edge of the trim tab is adjusted to the left. Is the trim tab adjusted to the wrong side...
  2. W

    Merc Service bulletins

    Does anyone know where I can find late model Mercury 4-Stroke Service Bulletins ?
  3. W

    merc 4-stroke lower unit

    I have a 2002 Merc 90 HP 4-stroke that runs quiet and smooth ( Yamaha power head), however I have noticed one thing that may or may not be a problem. At low RPM (1000-2000) the Merc lower unit makes a harmonic bearing noise, above 2000 RPM the noise goes away. Has anyone had this problem or...
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