Quote:
Originally Posted by robmac
The problem isn't the engine being able to run on the fuel it's the phase separation that happens after it being in the tank after 28 days. For that reason many marinas add chemicals to slow that process but it doesn't eliminate it.What happens is the ethanol absorbes ambient moisture and when it's saturated it drops to the bottom of your tank right where you fuel pick up is and the problems begin.
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That happens in your carb float bowl also and it will corrode the inside of the carb if it sits in there too long. That's why a good fuel stabilizer is a must on older boats and cars with carbs when putting them to bed for the winter.
I've rebuilt many carbs over the years and the ones that sit for too long are not even worth rebuilding.