1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 388Get this manual
7Reinstall plug 9Reinstall lanyard stop switch in bracket and secure with clip
51608Plug -
Nuts Key Switch Lanyard Stop Switch Trim Switch Clip
8Route key switch and trim switch harness through tiller bracketSecure both switches to bracket with respective nutsInstall grommet in harness access holeSecure harness with harness retainer
10Reconnect key switch, trim switch and remote stop switch leads at bullet connectorsSecure harness BLACK ground lead and tiller handle remote stop switch ground lead to bracket with selftapping screw