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hi


You are replying to:
kjgmh
Posted 1/8/2018 4:43 PM (#889216 - in reply to #887104)
Subject: Re: Yamaha - outboards & ethanol





Posts: 1087


Location: Hayward, WI		New boat fuel systems have a check valve that allows air in, but does not allow air out until a certain pressure. So the tanks do not "breath" as much as they used to.

Fuel injected motors do have a vapor separator, which do hold fuel much like a carb.

Fuel injected systems have electric fuel pumps which should not be ran dry.

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