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red gas in the internal fuel filter/F25EHX 1999

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  • red gas in the internal fuel filter/F25EHX 1999

    After a bout with the ethanol monster, I replaced all the internal and external fuel lines, replaced the tank, added a 10 micron filter externally, dismantled the fuel pump and cleaned and the same with the carburetor. Put fresh gas into the fresh tank with a few ounces of Sea Foam and that motor fired right up and ran great.

    Next morning came out and the gas in the internal fuel filter was reddish again. The gas in the external filter is fine.

    Where's the discoloration coming from?
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