Mercury Mariner 25HP 4-Stroke Outboard Service Manual 1997, Page 67Get this manual
Ignition Coil Removal and Installation 1Disconnect spark plug leads from spark plugs2Disconnect ignition coil wires from harness (DAN and BLKlWHT)3Remove ignition coil mounting bolts4Reverse steps for installation
Voltage Regulator Removal and Installation
1Remove sla-strap2Disconnect voltage regulator wires, (2) YEL,
GAY, and AED 3Remove mounting bolts and ground wires4Reverse steps for installation (refer to wiring diagram section 20 for correct wire connections)55864