I was hoping that I messed up, but no. I checked.

post #3 have you put fresh fuel in it ?

Fuel is good, does the same thing from a remote 5 gal. gas tank.

how long did it set with old fuel in the injectors

6 months or so. I'm pretty sure injectors are the issue. Most posters seem to think. Weird the Port motor has no issues. I hope it's not the fuel pressure regulator or the coils. I will run and check the fuel pressure under load this weekend.

It could be a timing issue if the crank sensor is not performing properly.....

agreed

could be bad coil, distributor, cables, spark plugs...if you think fuel pressure and injectors are good it’s likely an ignition or timing problem

No distributor, EFI, Coil, there is a coil pack, (several) Haven't checked the crank sensor, but not really sure how either. What ever it is, it's a sudden issue. Meaning last time the boat ran was no issue.

any sensor can be a sudden issue.....they have a life span......if the crank sensor is not reading the revs of the crank consistently it wont tell the ecm to advance the timing properly, if its easy to get to swap it from the other engine

Yup, that's tonight's project, and if I'll get ambitious might swap the coils. See what will take to do it.