Recent content by jeanp

  1. J

    Mercury 1975 Thunderbolt 650 3 Cyl

    Hi, After 10 minutes full throthle, The motors have a huge power loss but still runs, I changed the spark plugs, adjusted the Idle Mixture to 1 1/2, works for 1/2 day but the problem comes back. I have noticed that the bottom and top spark plug are ok but the middle one gets wet (gas and oil)...
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