Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 86Get this manual

Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 86

FUEL PUMPINTREGAL FUEL TANK
Integral Fuel Tank (4 HP Models Only)
DisassemblyAssembly
1Turn fuel cock knob to off position2Disconnect fuel hose from fuel cock3Remove nuts, washers, rubber mounts, spacers and screws and lift fuel tank from it's mounts4Empty any remaining fuel from tank into suitable container