Mercury Mariner Outboard 225 3 Litre Service Manual 1994, Page 36Get this manual
IGNITION MODULE
Installation
Removal
1Remove top cowling2Remove bolt securing ground lead
1Secure module to ignition plate with boltTorque bolt to 80 lbin(9.0 N-m) 2Secure module ground lead with boltTorque bolt to 80 lbin(9.0 Nm)
Reconnect harnessReconnect spark plug leadReinstall top cowling
CRANK POSITION SENSOR
Removal
Remove top cowling Remove sta-strap securing sensor harness and disconnect harness