1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 304Get this manual

1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 304

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5 Tighten trim sender screws

TO ENGINE

Wiring DiagramFor boats equipped with Quicksilver IgnitionChoke and Main Harness AssemblyTRIM INDICATOR IGNITION CHOKE SWITCH TRIM SEND