2007 challenger 180 Sputters

[chaugi]

Took the boat out a couple of times.some Ethanol gas had been pumped into the boat. Used seafoam. Fill with marine gas but still sputters. Is ther anything else I can do to alleviate the problem?

 

[triplethreat]

Which engine do you have? How long did the ethanol-containing gas sit in the engine? Unless it sat for a couple of months unused, you should be ok. I think most will agree that sometimes fresh plugs ‘fix’ symptoms like you are experiencing.

 

[timeman]

I'd start with new plugs, that usually cures a crap load of ills....