1996-2005 Suzuki DF40, DF50 Four Stroke Outboard Service Manual, Page 129Get this manual
5-5 FUEL SYSTEM
FUEL PRESSURE INSPECTION
1Relieve fuel pressure in fuel feed line(See page 5-2) 2Connect special tools (pressure gauge, pressure hosepressure joint) between fuel feed hose and 3-way joint pipe as shown in figureClamp hose securely to ensure no leaks occur during checking09912-58442Pressure gauge 09912-58432Fuel pressure hose 09912-58490Fuel pressure joint c
A small amount of fuel may be released when the fuel feed hose is disconnectedPlace container under the fuel feed hose or 3-way pipe with shop cloth so that released fuel is caught in container or absorbed in clothPlace fuel soaked cloth in an approved container2
3 1High pressure fuel filter 2Fuel delivery gallery 33-way pipe