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    1998 Merc 350 MPI hard starting & bogs

    This is added information since my original post: I have twin 5.7 MPIs on a 28 ft boat. When I accelerate from just about any rpm the boat bogs (slows down for a while before it gradually gains rpms. It is only on the straboard engine. Also, about 30% of the time I come off plane the...
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    Mercruiser 350 MPI bogs on acceleration

    I have twin 350 MPI Mercruisers 1999. The starboard engine bogs on acceleration in almost any RPM range. The fuel rail pressure on the starboard engine is 50 to 52 at idle and while under load. The fuel rail pressure on the port engine which runs great is 24 to 26. anyone have any...
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