"I have a 3.0L 4cylind 2 barre
"I have a 3.0L 4cylind 2 barrel carb 2005 merc. The engine runs great but when i am in rough water i will experience loss of power and a backfire when i am between 2000 and 3200 rpms. If i give more gas it will regain power. if i do not give it gas it will sputter and either stall out or regain power. If it stalls out restarting usually is a cure. In either case (stalling out or more gas) once i get it going it runs great without any further problems. I have changed all of the 3 fuel filters (water seperator, full pump and carb). The common thread for when it happens seems to be sea conditions not length of time run, temp. I suspect some water in the gas. What do you think?"
"I have a 3.0L 4cylind 2 barrel carb 2005 merc. The engine runs great but when i am in rough water i will experience loss of power and a backfire when i am between 2000 and 3200 rpms. If i give more gas it will regain power. if i do not give it gas it will sputter and either stall out or regain power. If it stalls out restarting usually is a cure. In either case (stalling out or more gas) once i get it going it runs great without any further problems. I have changed all of the 3 fuel filters (water seperator, full pump and carb). The common thread for when it happens seems to be sea conditions not length of time run, temp. I suspect some water in the gas. What do you think?"