2007 Evinrude E-Tec 75, 90 HP outboards Service Manual, Page 166Get this manual
FUEL SYSTEM FUEL COMPONENT TESTS open check valve at approximately 15 psi (103 kPa)
Lift Pump Pressure Test
Install to 15 psi (0 to 103 kPa) Fuel Pressure Gauge, PN 5006397 or equivalent, to the lower fuel pressure test fitting
1Fuel pressure gauge 2Test fitting
1Pressure regulator 2Fuel return fitting