Mercury Optimax Models 135, 150, Direct Fuel Injection., Page 198Get this manual

Mercury Optimax Models 135, 150, Direct Fuel Injection., Page 198

DIRECT FUEL INJECTION
Air Compressor Pressure Test
Install Pressure Gauge Assembly 91-852087A1A2 to fuel rail pressure test valvesStarboard rail has fuel pressure test valvePort fuel rail has air pressure test valve
NOTE: After 15 seconds of cranking engine with starter motor, air pressure gauge should indicate 79 psi (544.0 13.8 kPa) and fuel pressure gauge should indicate 89 psi (613.5 13.8 kPa)

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