2009 Mercury Optimax Sportjet 250 DFI M2

by Todd
(Weatherford, TX)

Engine bogs (as if starved for fuel or air) at higher RPM (>4250).

All 3 fuel pumps and all fuel filters have been replaced and the VST has been cleaned. Fuel injectors have been cleaned and calibrated (service ordered by certified Mercury Outboard Marine Service technician).

Have spent a lot of money on this situation to date and not sure where to go from here.

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