Toro 303447 - Engine Operation Cycles; Eight Essential Engine Events

FortheenginetorunthereareEight(8)eventsarerequiredfora2or4cycleenginetooperate.
First,Airisdrawnintothecylinder
Thecorrectamountoffuelismeteredintotheair
Theairandfuelaremixed
Theairfuelmixtureiscompressed
Thesparkplugfiresstartingcombustion
Combustioncausesarapidriseintemperature.Theincreasedtemperaturecausespressuretoincrease
whichproducesaforceonthepiston.
Theconnectingrodandcrankshaftconvertsthe linearmotiontorotarymotion.
Theburntgasesareexpelledfromtheengine.
Donotconfusethese
eventswiththefourstrokes(events)ofafourcycleengine.