NO spark, 2003 5.0 mercuiser thunderbolt 5

[sbm371]

boat shut off would not restart, changed sensor under cap along with cap and rotor, boat started and ran for 5 min than shut off and lost spark again, any ideas. Maybe ignition module?

 

[San_Diego_SeaRay]

any ideas.

Read achris' 21. How Mercruiser Thunderbolt IV and V works. Verified

and follow the flow chart:

 

[sbm371]

thank you!!!