Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 62Get this manual

Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 62

IGNITION SYSTEM
Ignition Coil
REMOVAL 1Disconnect BLACKYELLOW CDI unit lead from coil2Disconnect high tension plug lead from spark plug3Remove bolts, and washers and remove coil while disconnecting BLACK ground wires