1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 377Get this manual
Tiller ArmShift Lever Removal 1Remove BATTERY CABLES from BATTERY2Remove outboard cowling3Remove nuts securing shift link rod and throttle cable to engineRelease latch and remove shift link rod and throttle cable from anchor bracket
5Remove access cover from underneath tiller handle bracket
51626Access CoverScrews
a Locking Nut Washer Shift Cable Throttle Cable Latch Anchor Bracket 51620