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    2008 4.3 MPI Losing power

    My 2008 Mercruiser 4.3 MPI is losing power (rpm's) I bought the boat last Monday and ran the boat up to 55 mph on the test drive. My first real trip was great but my RPM's started dropping. By the end of that trip I could only get 4000 max rpm's and about 40 mph. Today started out with a max of...
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