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Recent content by bigfoot_jack

  1. B

    Mercury 25 excessive vibration

    I have a 2003 Mercury Bigfoot I have a 2003 Mercury Bigfoot 25 hp outboard that vibrates at idle speed even when in neutral. The vibration is only reduced slightly at higher rpms. This is on a pontoon boat and the whole thing shakes. We call it the "massage boat". I changed the spark plugs but...
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