1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 47Get this manual
4 Cylinder Battery Charging Diagram with Battery Isolator (Small Voltage Regulator) IMPORTANT: After electrical connections are made, coat all terminal connections using Quicksilver Liquid Neoprene (92-25711), to avoid corrosionBLK BLU GRY RED YEL DBLACK DBLUE DGRAY DRED DYELLOW
RED RED RED GRY
B1 B2 RED GRY YEL YEL RED RED