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  1. J

    2003 mercury 40 hp efi

    I have a 2003 Mercury 40 hp efi that had high pressure pump in the vst go bad. After replacing and putting it all back together I can't remember if the fuel pressure regulator had a hose connected. There's not one on the outlet pipe now and I may have buried it behind the tank when reinstalling...
  2. J

    Soot covered spark plugs

    I have a recently purchased 2001 Mercury 115 efi that is turning my two bottom plugs black(3 and 4 cylinder). Boat wouldn't plane out when I first got it, only sputter with more throttle and eventually die. Ran a compression check, cleaned the vst, new plugs, and changed injectors. Ran the boat...
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