Mercury Optimax 150 User Manual

DIRECT FUEL INJECTION
90-855347R1 JANUARY 1999 Page 3B-21
High Pressure Electric Fuel Pump
1. Install Pressure Gauge Assembly 91-852087A1/A2 to starboard fuel rail pressure test
valve.
NOTE: After 15 seconds of cranking engine with starter motor, fuel pressure gauge
should indicate 89
± 2 psi (613.5 ± 13.8 kPa).
56146
d
b
a
a-Fuel Pressure Gauge (Should Indicate 89 ± 2 psi (613.5 ± 13.8 kPa)
b-Fuel Pressure Test Valve

Mercury Optimax 150 Specifications

General

Horsepower	150 HP
Engine Type	V6
Alternator Output	60 amp / 756 watt
Starting	Electric
Steering	Remote
Displacement	2.5 L
Fuel Induction System	2-Stage Direct Fuel Injection (DFI)
Shaft Length	20", 25"
Dry Weight	431 lbs (20 in), 439 lbs (25 in)