1977 Evinrude 2 HP Outboards Service Repair Manual P/N 5302, Page 35Get this manual

1977 Evinrude 2 HP Outboards Service Repair Manual P/N 5302, Page 35

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5-2 DESCRIPlON
COMPRESSION STROKE-UP

Two-cycle engines used outboard motors require only two piston strokes, down, to effect crankshaft revolution and to complete the exhaust-intake