1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 140Get this manual
6Remove Rear Cowl Mounting Bracket from powerhead by removing bolts7Remove Ignition Components, from powerhead, including starter motor Stator Plate and Trigger Starter Motor Electrical Components Mounting Plate Plug Wires Temperature Sensor Solenoid
8Remove shift arm linkage at stud
NOTE: Removal of wiring harness and components, as unit, is advisable to simplify reassemblyaShift Arm LinkageStud
9Remove bolts (3 each side, backside) which secure powerhead to driveshaft housing