Mercury Optimax 115, 135, 150, 175, DFI year 2000 and up service manual., Page 235Get this manual

Mercury Optimax 115, 135, 150, 175, DFI year 2000 and up service manual., Page 235

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DIRECT FUEL INJECTION
The air pressure regulator is designed to limit the air pressure inside the rails to approximately 80 psiThe air regulator uses spring (pressure) to control the air pressur