1978 Evinrude 2 HP Outboards Service Repair Manual P/N 5391, Page 35Get this manual

1978 Evinrude 2 HP Outboards Service Repair Manual P/N 5391, Page 35

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5-2 DESCRIPTION

LEAF VALVE (CLOSED)
COMPRESSION STROK E-UP

Two-eyele engines used outboard motors require only two piston strokesone u, one down, to effeet erankshaft r