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Neither a four stroke nor a two stroke have a bigger piston. It all depends on the size of the engine and how it is built. A 250 four stroke will have the same sized piston that a 250 two stroke would if the bore size is the same. Cc is calculated by bore x stroke (how far up and down the piston moves) so if a 250 four stroke has a stroke of 3.00 inches and a 250 2 stroke has a stroke of 3.00 the piston will be the same size. The only difference between a 2 stroke and four stroke is how the engine works. A 2 stroke has reed valves and it makes power every time the piston goes up but a four stroke it makes power every 4 times the piston goes up.
What else can I help you with?
Why deflected shape of piston in 2-stroke engine?
In a 2 stroke engine the piston itself is the intake/exhaust valve, instead of having separate valves as in the 4 stroke. The odd shape of the piston is the location of these valves.
How do exhausts work on a two stroke?
The exhaust plays a great part on a 2 stroke than a 4 stroke. The exhaust system is the only thing that is scavenging the cylinder of the burn gases on a 2 stroke, verses the piston pushing most of the exhaust out on a 4 stroke.
What type of engine delivers power with every down stroke of the piston?
2-stroke engine
Diffenerence between 2 stroke and 4 stroke?
The difference is in the amount of stokes the piston makes in one cycle. A four stroke will explode on one stroke turning the engine over. Then on the up stroke it pushes the exhaust out. The next down stroke fills the cylinder with fuel. On the final stroke the piston compresses the fuel and the cycle repeats. This results in four strokes of the piston. A two stroke has two strokes of the piston before it repeats the cycle. The first stroke is the explosion. The piston is pushed down. on the down stroke the piston reveals a port that exhausts, and then another port is revealed that fills the cylinder with fuel. the up stroke compresses the fuel and then the cycle repeats. The logical difference is the 2 stroke will accelerate faster
How is the speed of a piston is determined?
The speed of a piston in an engine is determined by the engine's RPM (revolutions per minute) and the stroke length of the piston. The speed can be calculated using the formula: speed = (2 * pi * RPM * stroke length) / 60. Increasing the RPM or stroke length will increase the speed of the piston.
What is the piston displacement of a compressor with 2 bore and 3 stroke?
12.00 in
What is the difference between a 2 and a 4 stroke dirt bike?
Well with out boring you to death Ill give you the basic version. A 2 stroke engines piston on the down stroke pulls in fuel and air mixture on the way up it compresses mixture. At the peak of the stroke it is combusted forcing piston down. On the pistons up stroke the exhaust port opens and pushes out exhaust out. If you count the cycles there are 2 hence 2 stroke. The piston makes 2 cycles for every power cycle. The 4 stroke makes 4 cycles for every power cycle.
2 stroke vs 4 stroke?
On a 2 stroke engine, each cylinder fires every time the piston comes up. On a 4 stroke engine, the cylinder only fires every OTHER time the piston comes up. 4 stroke engines have 4 strokes: Intake, compression, power, and exhaust. 2 stroke engines complete these cycles in only two strokes of the piston by use of ports in the cylinder walls. 2 stroke engines usually produce more power for a given weight/size. But, in gasoline engines, 2 stroke engines are typically less efficient (use more gas) and have much higher pollution levels (note: some newer "direct injection" 2 stroke engines do much better on pollution levels than the typical 2 stroke)
What are the disadvantages of a 4-stroke engine?
For a set amount of power, they're heavier, bigger and use more parts than a 2-stroke engine.
Do 2 stroke engines have timing?
Yes they do, the spark and piston must be in time.
What is a 2 stroke dirt bike?
A 2-stroke engine requires that you mix oil with your gas where a 4-stroke engine uses gas straight out of the pump. A 2-stroke engine does not have any valves and therefore, weighs less than a 4-stroke engine. 2 strokes fire once for each revolution whereas a 4-stroke fires once every other revolution. 2 stroke engines are easier to maintain (less moving parts - no valves, no oil pump, etc.) However, you do have to mix your gas, they are less efficient and much worse for the environment, because there is constantly unburned oil and fuel passing through to the exhaust. yeh, basically a 2 stroke engine has one powerstroke in every 2 strokes of the piston. a power stroke is the piston stroke that provides the power, the spark plug fires and forces the piston downwards. so the 2 stroke cycle is basically compression, power, compression, power etc. it uses the start and end of these 2 strokes to also perfrom intake and exhaust. whereas a 4 stroke has one powerstroke for every 4 strokes of the piston. its cycle is intake, compression, power, exhaust. INTAKE - intake valve(s) open and as the piston moves down and suck in charge (mix of fuel and air), the intake valve(s) then close COMPRESSION- the piston moves upwards compressing the charge, at the top of this stroke the spark plug fires POWER- and ignites the charge forcing the piston downwards. EXHAUST- the exhaust valve opens and the piston moves upwards and forces the exhaust out.
What is the purpose of the piston ring locating pins?
To keep the rings from rotating on 2 stroke engines. You will not see this on 4 stroke engines.
