The upstroke of a two-stroke engine has only one function: compression. The downstroke is where power, then exhaust, then intake occur. This is the greatest animation I've seen for explaining a two-stroke engine: http:/www.animatedengines.com/twostroke.shtml
'a 4 stroke engine cycle' is usually what it is called...
The release of CO2, H2O, and CO occurs during the exhaust stroke of the four-stroke engine cycle. As the burnt fuel-air mixture is pushed out of the cylinder, it combines with oxygen to form these byproducts before being expelled through the exhaust system.
the four stroke engine cycle
In a two-stroke engine, two strokes is one cycle. In a four stroke engine, four strokes is one complete cycle. A stroke is a part of a cycle. Remember that the "up" motion and the "down" motion each count as one stroke.
It is called the compression stroke.
A 2 cycle engine's piston cycle twice. One compression stroke and 1 exhaust stroke. A 4 cycle engine cycles four times before its exhaust stroke.
Pollution - 4 stroke has far less unburnt hydrocarbon in the exhaust.
The Ottoman Cycle
generally speaking if it has valves its a 4 stroke 4 cycle engine......if it doesnt have valves then it is a two stroke 2 cycle...................
If it is a 2-stroke engine, 2-cycle engine oil is added to the gasoline. If the engine is 4-stroke, regular 30W motor oil is used. To tell if your engine is 2-stroke or 4-stroke, look for a spout where oil is poured into the engine. If there is no spout, then the engine is 2-stroke and 2-cycle oil must be added to the gasoline.
Absolutely not. Use only 4 cycle oil in a 4 stroke engine. 2 stroke oil is formulated to be mixed with gasoline and will not protect a 4 cycle engine.
2 stroke and 2 cycle mean the same thing