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  1. L

    Timing and throttle adjustments

    Engine: 1997 75 Mercury. <br />Problem: Not reaching WOT (3000rpm only)<br /><br />After a lot of focus on the propeller, I decide to look at my carb. Linkage. What I found is the following. The butterfly flaps in the throat of the carbs, were only about 1/3 open at full throttle at the helm...
  2. L

    1996 75hp Merc. WOT

    This engine is attached to our houseboat, which is moored in a slip. I run it every other weekend to ensure all is well, etc.<br />While watching the RPM gauge, I slowly pushed the control lever at the helm to WOT. However, the RPMs did not exceed 3000. They should be within 4650 – 5200, I...
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    Appropriate Houseboat engine size

    Our houseboat (Waterhouse 14' x 44') has 1996 75hp mercury 2 stroke. It is turning a 14" x 10" prop. But cannot reach my WOT @ ~5000rpm nor theoretical boat speed (8 knots). We are looking for the most effective powerplant/prop combination to have optimum fuel efficiency, has well as meet hull...
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