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All Evinude 2 stroke motors (which a 1986 would be) after the year 1964 are mixed at 50:1. Middle to Late 50's to 1964 was 24:1 and prior to that was 16:1. If unsure always error on the side of caution. The older motors were built loose with less sophisticated internal parts so the extra oil, besides providing the extra needed lubrication, also is needed to reach full compression.

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15y ago

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