Mercury Optimax 115, 135, 150, 175, DFI year 2000 and up service manual., Page 229Get this manual
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DIRECT FUEL INJECTION
g40 psi Check ValveWater Inlet for Cooling Fuel RailExcess Air to Adaptor Plate90 psi (616 kPa) Fuel80 psi (547.8 kPa) Air
90-859494R1 JUNE 2000
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