Rough Idling

[CincyLaunch]

The past couple of times I've put my boat in its been warming up rather rough. Once it gets up to temp no problems at all. Could this just be a bad load of gas or possibly a bad sensor?

[duckseatfree]

how do you mean? shaking? low or fast idle speed? etc....?

[DAFF]

Check the air filter and make sure nothing is loose on the sensor side of things. Could be as simple as older fuel or a tad of water in a filter. If it was me do a quick tune up and look everything over. Did any CEL codes every light up??

[CincyLaunch]

I think its just a load of fuel that has been sitting around for awhile. The fuel stabilizer probably doesn't help much. I'll run down this tank and throw some 93 octane in and see how it runs.

Thanks