1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 98Get this manual
Installation of Design Fuel Pump MODEL 70, 75, 80, 90
MODEL 100, 115
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Clear Tube [5.5 in(139.7mm)] To Oil Pump Outlet Check Valve Hose [1.5 in(38.1mm)] Hose [2.5 in(63.5mm)] Fuel Line Connector Y-Fitting Hose [3 in(76.2mm)] Fuel Pump 90 Degree Elbow Fuel Outlet to Filter Hose [2.5 in(63.5mm)] To Pulse Fitting on Powerhead
Clear Tube [8 in(203.2mm)] To Oil Pump Outlet Check Valve Hose [1.5 in(38.1mm)] Fuel Connector Hose [1.5 in(38.1mm)] T-Fitting (EXISTING) Y-Fitting Hose [1.75 in(44.5mm)] Fuel Pump Fuel Outlet to Filter 90 Degree Elbow Hose [4 in(101.6mm)] To Pulse Fitting on Powerhead