Mercury Mariner 25HP 4-Stroke Outboard Service Manual 1997, Page 67Get this manual
Quality of the image is intentionally reduced!
Ignition Coil Removal and Installation 1 Disconnect spark plug leads from spark plugs2 Disconnect ignition coil wires from harness (DAN and BLKlWHT)3 Remove ignition coil mounting bolts4 Reverse steps