What is the Difference Between Two-Stroke Internal Combustion (IC) Engine and Four-Stroke IC Engine?
The four-stroke engine is probably the most common IC engine type. A four-stroke (cycle) IC engine completes its power cycle (intake, compression, power, and exhaust) in two revolutions of the crankshaft as compared to one revolution for the two-stroke (cycle) IC engine. This information could be found on your AQMD permit description and/or equipment specification manual.