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  1. J

    1999 Force 120 HP cuts out at 4400 RPM

    Re: 1999 Force 120 HP cuts out at 4400 RPM here is what a good piston looks like
  2. J

    1999 Force 120 HP cuts out at 4400 RPM

    Re: 1999 Force 120 HP cuts out at 4400 RPM Got the head off. Could see nothing wrong on the head gasket. But it is clear what is wrong with number 2 cylinder. See photos below. Apparently overheating occurred, some of the piston disintegrated and that material scored the cylinder wall...
  3. J

    1999 Force 120 HP cuts out at 4400 RPM

    Re: 1999 Force 120 HP cuts out at 4400 RPM ok, did the compression test and I think I found the culprit - reading were 1 - 82, 2 - 40, 3 - 99, 4 - 95. I see a little bit of corrossion creeping about the bolts near # 2 cylinder. Good news, I don't think I see any metal particles on the...
  4. J

    1999 Force 120 HP cuts out at 4400 RPM

    My 1999 Force otherwise runs perfect, I have had it since brand new. Recently I installed a CD and radio in my boat and learned that RFI from the engine was causing it not to work. So I switched from NGK BUHW plugs to NGK BUZHW plugs and RFI problem is gone. But, ever since this change, my...
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