Name:   rdfarr - Subject:   225 Merc OB surging Date:   10/30/2014 8:43:11 AM

Sorry. I should have been more specific. 

It's a Mercury Optimax 225, fuel injected, about 2005 vintage, mated with a 23' cuddy cabin.  Was told that the injectors were rebuilt within the last year before I got it.  I've had the boat/engine since about May this year.  Don't know the number of hours, but was used infrequently in the Gulf before I bought it.  I've been careful to use only fresh regular gas, and including STA-BIL and enzyme fuel treatment.