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post #13 of Old 05-08-2013
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Re: Another (stupid?) outboard motor question

Originally Posted by Sal Paradise View Post
Actually the fuel in the air condensates against the cold cylinder walls and this results in a very lean air -fuel mixture.

So we richen it up with the choke.
That and the colder air is denser so you need more fuel to achieve proper stoichiometric fuel/air ratio.
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