2002/2003 Johnson SN/ST 2 Stroke 3.5, 6 8 HP Outboards Service Manual, PN 5005466, Page 13Get this manual
INTRODUCTION TYPICAL PAGE0
TYPICAL PAGE0
FUEL SYSTEM FUEL SYSTEM TESTS
OMS Pump Pressure
Test Procedure Remove fuel outlet hose from the top of the vapor separatorInstall T-fitting and fuel pressure gauge capable of measuring to 15 psi (0 to 103 kPa)
Results Normal pressure Perform the Vacuum TestMake sure no air leaks or restrictions exist in the fuel supply hose or boat fuel systemLow pressure Check pulse hose and pulse limi
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