Mercury Mariner 4, 5 102CC Sail 1990 Outboard Service Shop Manual, Page 162Get this manual
Kit Installation This vol tag regulator kit connects directly to alternator wiring and provides regulated AC cu rrent for operating lights while engine is runn ing
Kit Installation
This light ing harness kit connects directly to alternator wiring and extends alternator leads to provide on regulated AC current for operating lights while engine is running Remove and disca rd rubber plug (a) from bottom cowl
Mou nt voltage regu lator at desired location in boat and route oth (2) yellow voltage regu lator leads to engineMake all wiring connect io as shown in Wiring Diagra",