2001 8.1 mercuiser engine no fire on 3 cylinders

[toddgray519]

Does anyone have a copy of electrical diagram for a 2001 8.1 engine

 

[willow]

This is the CRUSADER MARINE ENGINE forum...................You might try

https://www.marineengine.com/boat-forum/#gas-inboard-engines-inboard-outboards-and-sternd.961

and pick an appropriate forum there...Good Luck

 

[AllDodge]

Have you tried swapping the coils?