1995 Mariner Mercury Outboards Service Manual 50HP 4-Stroke, Page 101Get this manual
4Rotate plunger 90 to offset slots"-_ 53615
Fuel Pump Installation
1Secure fuel pump to cylinder head cover with boltsTorque bolts to 5.9-9.3 Nm2Connect fuel lines to pump3Secure fuel lines with sta-straps
aSlots AlignedSlots Offset
5Assemble diaphragm, sealand cover, to pump body, secure with screws and nutsNOTE: Seal installs in one direction only(D