Two-stroke engine: combustion engine whose cycle (intake, compression, combustion and exhaust) requires one up-and-down movement of the piston.
exhaust/scavagingSecond stroke during which the piston is pushed back by the expansion of the burned gases, which are then expelled and replaced by the mixture coming from the crankcase.
combustionEnd of the first stroke during which a spark ignites the air/fuel mixture.
intake portConduit through which the air/fuel mixture enters the crankcase.
exhaust portConduit through which the burned gases are expelled from the combustion chamber.
crankcaseSealed enclosure where the air/fuel mixture enters and the piston/connecting rod moves.
transfer portConduit conducting the air/fuel mixture from the crankcase to the cylinder.
compression/intakeBeginning of the first stroke during which the piston moves up, drawing the air/fuel mixture into the crankcase and compressing the mixture in the cylinder.
spark plugElectric device whose two electrodes produce the spark necessary to ignite the air/fuel mixture in the cylinder.
how to rebuild 2 stroke engine part 1
How six stroke engine works.
2-Stroke Engine Failure - KTM Dirt Bike FAIL - Engine ...