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  1. G

    89 merc100hp oil warning alarm

    I have a oil tank problem or a module problem. I have replaced the sensor and it did not stop the warning alarm to shut off. The only other suggestion i have found was to turn the tank up side down to test the float sensor in the tank. IS there a better test to check the tank? And how do you...
  2. G

    mercury 100hp

    what is the spark plug gap setting for a 1989 100hp mercury? And for this engine how often should change the plugs.
  3. G

    mercury 100hp

    what is the spark plug gap setting for a 1989 100hp mercury? And for this engine how often should change the plugs.
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