Mercury Optimax 115, 135, 150, 175, DFI year 2000 and up service manual., Page 216Get this manual

Mercury Optimax 115, 135, 150, 175, DFI year 2000 and up service manual., Page 216

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DIRECT FUEL INJECTION
aPort Fuel RailFuel Pressure PortAir Pressure Port 2 Place suitable container underneath vapor separator drain plug and remove plug3 Disconnect water separator sensor lead4