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Two stroke engines will create a lot of visible smoke pollution and also more noise than four stroke engines. For these reason, many countries have required that all new motorcycles should be four-stroke.
The difference between 2stroke engines and 4-stroke engines are pretty much the same regardless of where the engine is used. To read about it, check out the related question below.
All tug boat engines are four stroke engines, because this engine responces quickly in relation to maneuvering this kind of boat in any situation.
Most gasoline engines are four stroke engines which is also known as the Otto Cycle. 1) Intake 2) Compresson 3) Ignition 4) Exhaust (four strokes)
Four-stroke engines have a spout where you add oil to the engine. On two-stroke engines, oil has to be added to the fuel. (Four-stroke and two-stroke are also called four-cycle and two-cycle, respectively).
Most gasoline engines are four stroke engines which is also known as the Otto Cycle. 1) Intake 2) Compresson 3) Ignition 4) Exhaust (four strokes)
Assuming you are referring to a street legal motorcycle (IE: Kawaski Vulcan, Ninja, etc.) these machines have four stroke engines. Dirt Bikes and such sometimes do not. Two-stroke engines generally use a fuel+oil mixture. (Such as a weed whacker) Four stroke engines generally have an oil sump. (Like a car)
Suck My @#$&
Four stroke engines are quieter than two strokes, but have less power.
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.
Unless we are talking about big diesels - Yes.
with out them we wouldn't have cars