RipinLips

..my little outboard won't start. I literaly ran one tank of ethenol through it, and switched back. It ran rough a couple of time, and Sunday it would not start at all. Now what do I do? Will "Sea Foam" correct the problem, or does it have to go under the knife?

TheCaptKen

Do you have major medical? That one tank of Ethanol probably desolved all the gunk that was just hanging around. Nothing wrong with ethanol, just a real good cleaning agent and will desolve any gunk or crap in the fuel system and move it on through.

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billin

Change your fuel filter a couple of times and you will be fine as long as you don't clog an injector old fuel is as bad if not worse than e-10

lobsterman

I do believe Sea Foam also has alcohol in it. So be carefull with it.Ethanol is not kind to marine engines, outboards especially.

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Ocean Master

More info on the engine/tank configuration. What year engine?

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Breeze

I seriously doubt one tank of ethanol caused your problem. It might have made the problem happen sooner, but isnt the direct cause. It takes alot more then one tank to mess up anything in the fuel system. First thing I would do is check spark, and maybe change the plug. If its easy enough to get to the carb bowl drain screw, then drain it into a clear container and see if you have any water in it. I have had several bikes in the shop lately that have gotten bad gas from the gas stations..... Check spark, check for water in the fuel, then go from there...

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mt0264

what he said

Bustedknuckle

I agree x2 I bet the real problem is not from the one tank of e-10 gas. Check spark and check for fuel and see which route to diagnose. We need more info like is the motor even turning. or turning and not firing. just my 2 cents

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GWally

Seafoam is "100% pure petroleum product". I ran some mixed with some old mix through my '90 48 Special and it helped but, to make sure, I used a trick a Cajun outboard repair guy told me when he was too backed up to clean my carbs and I wanted to go fish (I have no clue how you'd use it with injectors though). He recommended spraying Sierra Carbon Free in my carb. I hit the high speed jets, some in the throat in hopes it would leak somewhere useful, pulled the float (?) chamber drain plugs and sprayed some in and tried to stop the holes before it all leaked out, and even sprayed the little screens on the side (don't know if the lead anywhere internally but, figured it was worth a shot. Let it sit overnight and it worked like a charm, started up and ran smoothly (well, as smooth as an old 2 cyl can I guess). Before he filled me in on this "secret", I'd usually end up getting the carbs cleaned out to the tune of $100 or so every couple of years. I also put some Seafoam in my lawnmower that started acting up and it seemed to like it. I actually bought the stuff for the crankcase in my Mercruiser, got some water in the oil and want to flush it out. I only bought the stuff after reading glowing reports from users (not on the Seafoam site though).
Hope this helps

jigmaster

I think you are right also that fact that pure gas flows allot easier than e-10. Pure gas carried the tiny broken down particles into your jets essentially the same as clogged arteries plaque build up etc. I would not use Sea Foam it contains around 10%-20% Isopropal Alchohol. The remaining ingredients of Naptha and Pale oil will raise your flash point and change your octaine. If you use too much it will interfear with detonation and quite possibly leave more of a carbon residue causing greater compression however two strokes arent high compression engines thus making your engine seem to run better but putting a greater load on your crank bearings which is not good for longevity. Ever heard my engine was running best it ever has just before it blew up- I dont understand?
Sea Foam will absorb water and allow the fuel to burn which is why some people think its great stuff. You could accomplish the same thing with Heet that walmart sells for about 1.68 but remember alchohal/ ethanol is bad.

Solution:
Drain the fuel, purge your line switch back to pure Gas- it will last a year with no wasteful additives. Trust me you will use it and fill up with fresh Gas before then. If you dont ,sell the boat and fish off the dock you will save yourself money and frustration. The south east is very humid -close your tank vent when done operating to prevent water/moisture from getting in. A sock over the fuel cap also works great for portable tanks. The other thing you may want to check is the inlet pick up screen in your tank they can clog or collapse with e-10 use making your engine starve for fuel.


* Also if you happened to mix pure gas with e-10 it can Gel causing this symptom.

*Also if you plan on using E-10, a synthetic two stroke oil is much more compatible as opposed to the Petolium based Dino oil.