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  1. J

    1998 Mercury bogs under load

    I have a 1998 Mercury 225 EFI that bogs down severely under load. The boat (1998 Nitro 912) will not plane out. This problem began to develop just recently. When it first started I could have whoever was with me go towards the front deck and the boat would gradually climb out of the hole and...
  2. J

    Engine Losing Power? (Please Help)

    I have a 1998 Mercury 225 EFI. Just recently this outboard began to "lose power". Motor will start fine and seems to idle correctly. But, when trying to accelerate out of the hole, the motor will not climb above 2000-2100 RPMs. I have checked the compression on each cylinder and get readings...
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