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  1. 3

    optimax problem

    Was fishing in Chesapeake Bay today when things went bad for my opti. Motor had run most of the day with no issues when the motor began to squeal and squal and cut off. It would crank right up, but would do the same thing again. Removed the cowling and found the belt to be very slack. I just...
  2. 3

    Question about optimax

    My 2004 150 optimax, while at idle, has a lot of steam that comes from the exhaust ports. It is not smoke, but steam. If I speed the motor up just a little bit the steam stops. Once I return the engine to idle the steam returns. Also by raising the rpms just a little bit the engine water temp...
  3. 3

    150 optimax

    What rpm should I be turning with this engine?
  4. 3

    prop ?

    Finally got through the break in on my new boat, now I have a question for you all about my prop selection. This is what I have: <br /><br />Proline 20ft. walkaround <br />150 optimax with a mercury vengeance 17 ss prop <br /><br />wot with a small amount of trim gives me about 5000 rpms with...
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