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Recent content by cjbradpowderfinger@gmail.

  1. C

    Mercury 40HP 4 stroke carb 3 cylinder

    Serial # OG836153 thinking it is a 98-200 not sure of the part #of the plugs as there has been a new carb kit installed by the previous owner The part number taken off the Mercury parts site is 854248
  2. C

    Mercury 40HP 4 stroke carb 3 cylinder

    I had issues with overheating, but I have that worked out now, It always ran rough on idle, so I removed carbs fully clean and reset the float heights, one thing I tried was leaving out the rubber plugs on the base of the pilot jet openings. Interesting to find that the engine started much more...
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