1991 Johnson Evinrude 9.9 Thru 30 HP Models Service Manual P/N 507946, Page 28Get this manual

1991 Johnson Evinrude 9.9 Thru 30 HP Models Service Manual P/N 507946, Page 28

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Fuel Requirements Minimum Octane Models Recommendations

Alcohol attracts and holds moisture which system Alcohol extended fuels

cause corrosion of metallic parts of the fuel<