1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 379Get this manual

1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 379

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10 Disconnect BLUEWHITE and GREENWHITE trim leads from trim solenoids 13 Remove bolt and nut (hidden) from tiller handle bracket
11 Remove key switch, trim switch and their harnesses from tiller