1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 365Get this manual
Connecting Engine Wiring Harness and Routing of Engine Cables WARNING Wiring passing through cowl must be protected from damage by using neoprene sheet as shownFailure to protect wiring could cause chafing or cuts in wiring resulting in electrical system failure andor possible bodily injury
2Wrap neoprene sheet around cable bundle and secure each end with sta-strapSecure to bracket with retainer
Models with Power Trim
a Engine Connector Retainer Harness Connector Harness Retainer Neoprene Sheet Sta-Strap(s)