High Pressure Electric Fuel Pump - Mercury Optimax 250 Manual

High Pressure Electric Fuel Pump

1. Install Pressure Gauge Assembly (91-852087A1/A2/A3) to starboard fuel rail pres-
sure test valve.
NOTE: If low air or low fuel pressure is indicated, swap hoses between air and fuel test
ports. If low reading moves, gauge accuracy should be checked.
NOTE: After 15 seconds of cranking engine with starter motor, fuel pressure gauge
should indicate 90
a -
b -
90-888438 JUNE 2002
2 psi (620.5
Fuel Pressure Gauge [Should Indicate 90
Fuel Pressure Test Valve
13.8 kPa).
b
00149
2 psi (620.5
DIRECT FUEL INJECTION
a
13.8 kPa)]
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