1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 28Get this manual

Ignition Coils (3 Cylinder Models) 1Refer to wiring diagrams in Section 2D when connecting wires
Ignition Coils (4 Cylinder Models)
1Refer to wiring diagrams in Section 2D when connecting wires

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