Mercury Mariner V-250 V-275 Outboard Service Shop Manual 1990, Page 35Get this manual
IGNITION COIL REMOVAL AND INSTALLATION Ignition Coli Removal
Ignition Coli Installation 1Place coi in coil cover and install to engine with screwsMake sure that coil ground wires are fastened along with screwsT ighten screws securely
, Remove rear cowl support bracket from engine
2Reconnect switchbox wi re to (+terminal of coil and black ground wire to (-) terminal
a Rear Cowl Support b-4Nuts
2Remove the spark plug (hig ten sio n) lead from the defective coil
3Di sconnect wires from (+) and (-) terminals on defective ign ition coil4Remove sc rews and lift co il cover along ith co ils