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    2017 115hp efi fuel issues please help

    2017 mercury 115hp efi 2B469810. I believe is started as a bad gas problem. I tried to run it on what I thought was bad gas. It would start and die many times before firing and bogging out. I removed all gas changed inline filter, changed screen in fuel rail. Then ran 2 cans of sea foam at 50/50...
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    1974 302 Holley 2barrel

    I have a 1974 302. I had the carb rebuilt about 2 months ago. Ran great for about 20 hours. Now it will start and idle great. Run great going slow at lower rpms. Get to WOT soon as boat is getting to plane it dies. Replaced all filters, fuel line, anti siphon valve, spark plugs. And still does...
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