Does a two stroke fire every time?

What are advantages of two stroke engines over four stroke engines?

There are a couple, less parts for one therefore lighter. Also, 2 stroke engines fire every time the piston comes to the top. Which means every stroke is a power stroke. 4 stroke engines fire every other time.

Why do 2 cycle engines run hotter than 4 cycle?

A two stroke engine fires (an explosion in the motor) twice as often as a four stroke. A stroke is every time the piston in the engine changes direction. (From up to down) A two stroke engine fires every time the piston comes to the top where a four stroke will fire every other time. So if two single cylinder engines are running at 1,000 RPMs a two stroke will fire 1,000 times a four stroke will fire only 500 times. With twice as many explosions it will be hotter.

Describe how a two stroke engine works?

Two stroke engines do not have valves, which makes their work simpler. They also have more power than a four stroke engine, because they fire every revolution rather than every other revolution. The fuel is taken in, revolved through a compressor and pushed out the exhaust.

Why initial pickup is better in two stroke engine as compare to four stroke engine?

The two stroke has more initial pickup because combustion happens every time the piston is at or near the top dead center. In the four stroke, combustion happens every other time the piston is at or near top dead center. <><><><><> Since the combustion cycle occurs every rotation, instead of every other rotation, there is twice as much torque available to the engine output.

List two reasons why small engines are more efficient than big ones?

they have small cylinder and they also fire at every second stroke.

What happens to the speed using 2 stroke compare to 4 stroke?

two stroke engines have a power stroke every second revolution of the crank shaft. four strokes have a power stroke every fourth revolution of the crank shaft. that is why a 125cc two stroke has about the same power as a 250cc four stroke.

Do the Subaru coils packs fire the same amount of voltage on the cylinder that's not firing as I would like to use them on a two stroke motor?

Yes, All Subarus are "wasted spark" systems where two cylinders fire at the same time, but only one is on the compression stroke while the other is on the exhaust stroke, thus the spark is wasted.

Why two stroke engine called by this name?

on 2 stroke engines the cylinder fires everytime the piston comes up. on 4 stroke engines the cylinder fires every other time the piston comes up http://videos.howstuffworks.com/user/4729-two-stroke-cycle-engine-video.htm

What is Two stroke engine?

In my point of view two stroke engine is the best engine ,because in two stroke engine there are only two stages or two stroke .In which one stage complete the two process frist is suction & second one is compression ,in these two process completes in one stage. The best advantage of this engine is the in every cycle there is a power stroke due to which the engine performance is very good . But the biggest disadvantage is the fuel consumption . Which after some time reduced by the resarcheres.

How many times does the spark-plug fire?

Spark plugs fire at the top of the compression stroke. That happens once for every rotation of the crankshaft. So it depends on how many rpms your engine is doing at the time (observable on your tachometer). If your engine is idling at 1000 rpms each of your plugs is firing 1000 times a minute.The spark plug is fired once every two revolutions of the crankshaft on a 4 cycle engine, so at 1000 rpms the spark plug fires 500 times.Poprivet is right and I stand corrected. They do fire every other rotation of the crankshaft.Greetings gentlemen. 'Two Stroke' and "4 Stroke" are confusing misnomers. That is inaccurate, all due respect. Once every 2 rotations, and every one revolution on a two stroke cycle engine..... and there is really no such thing as a 2 cycle or 4 cycle engine. A spark plug fires 30 times a second in a 4 cylinder engine running at 1000 rpm's, 1800 times a minute. On engines with a distributor.One revolution of the crankshaft is two 'strokes' in what the proper term is a " 4 Stroke Cycle" engine. It is important to differentiate between 'stroke' and 'cycle'. It takes 4 movements, one travel of the piston up is a 'stroke'. One travel down is a 'stroke'. It takes 4 strokes to make a cycle..an often misunderstood concept because people say 2 stroke engine, meaning 2 stroke cycle.OK. The spark plug fires one time per 2 revolutions of the crankshaft. Again, on engines with a distributor. But in many modern engines, for example the Saturn Vue, Ford Escort, just to name a couple, and many other modern engines with coil packs and no distributor, there is a "waste spark" on dual polarity coils, the crankshaft position sensor sends a signal to the ECU, aka PCM, and "tells" the coil to ignite the spark plug at each TDC of the piston, both times it is at TDC therefore it will ignite the plug at the top of the exhaust stroke, before the piston begins to travel down on the intake stroke. That is your 'waste spark' and doubles the figure because it fires on each turn on the crankshaft. Now, on a two stroke, it fires every time anyway...that is why it's called "two stroke". Two strokes complete a cycle. There are reed valves, and one stroke is up and the other is down.... and every down stroke is a power producing stroke. Every time the piston travels down it is producing power to the crank, the plug ignited by a magneto. ~David

Do you mix oil with a two stroke outboard motor?

Gas and oil are mixed on a two-stroke engine, but you don't always have to do it. Some two-stroke outboards have oil tanks and mixing systems that dispense the correct amount of oil for any operating condition; if you have this, you need to check the oil tank every time you add fuel.

How many times does a 2 stoke engine fire per revolution?

A 2-stroke engine fires once per revolution of the crankshaft. This is because the engine completes a power stroke with every rotation, utilizing both the intake and compression strokes in a single revolution. This design allows for a simpler and lighter engine, but it also results in less efficient fuel consumption and higher emissions compared to 4-stroke engines, which fire once every two revolutions.