1981 Johnson/Evinrude 4HP Outboards Service Repair Manual P/N 392069, Page 25Get this manual

1981 Johnson/Evinrude 4HP Outboards Service Repair Manual P/N 392069, Page 25

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LEAF VALVES Inspect the leaf valve assembIy and disassembIe if necessaryThe leaf valves must free from all varnish and gum, and the leaves must perfectly flat and without distortion so that they form