Chrysler 6, 7.5, 180 Sailor Outboard Motors Service Manual, OB 3330, Page 91Get this manual
ACOMBUSTION Spark plug ignites the compressed mixtureresulting explosion forces the piston down which in turn rotates the crankshaft BEXHAUST Exhaust escapes through port and combustion chamber fallsFresh supply of fuel is compressed in crankcase
CINTAKE Inlet port is uncovered, fuel mixture enters combustion chamberFlow pattern of fresh fuel mixture helps push out exhaust