1978 Johnson 2HP outboards Service Repair Manual P/N JM-7802, Page 35Get this manual

1978 Johnson 2HP outboards Service Repair Manual P/N JM-7802, Page 35

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5-2 DESCRIPlON
OPERAlON

LEAF VALVE (CLOSED)
COMPRESSION STROKE-UP

Two-eyele engines useel outboard motors require only two piston strokes, one elown, to effeet er