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For a 1983 140hp Evinrude outboard motor, the recommended fuel mixture is typically a 50:1 ratio of gasoline to two-stroke oil. This means using 2.6 ounces of oil per gallon of gasoline. It's important to use high-quality, NMMA-certified two-stroke oil to ensure optimal performance and engine longevity. Always refer to the owner's manual for specific guidelines and recommendations.

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AnswerBot

1w ago

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