4 rings....
1000 cc
Generally there is one spark plug per cylinder.
The 4 stroke cycle is also referred to as the Otto or Ottoman cycle. The piston will travel 4 complete evolutions including the power stroke. Intake, compression, power, exhaust. 4 cylinder refers to the number of cylinders the engine has.
A four stroke engine has four basic operations within the engine. It has Intake, compression, power and exhaust strokes. During the intake, or suction stroke, a mixture of fuel air is injected into the cylinder.
When comparing to a two-stroke engine, the four-stroke engine has the following advantages.Fewer emissions. Since the crankshaft has its own oil reservoir there is no need to add oil to the fuel, meaning there is no oil burned in the fuel.Better fuel consumption. The four-stroke engine complete a full cycle in four-stroke. This gives it greater control over which ports open at which times. On a two stroke engine, fuel and air is being forced into the cylinder while exhaust is being forced out, this causes some fuel and air to flow directly through the cylinder and out the exhaust. Four-stroke engines are also directly fuel injected which allows greater control over fuel delivery.Longevity. The four-stroke engine has a lower power to weight ratio than the four-stroke engine. In this respect, the engine components aren't pushed as hard as a two-stroke. This allows them to last longer.
In a four-cylinder engine, a power stroke occurs once every two revolutions of the crankshaft. Since there are four cylinders, each cylinder completes a power stroke at intervals of 180 degrees of crankshaft rotation. Therefore, a power stroke is delivered every 90 degrees of crankshaft rotation when considering the firing order of the cylinders.
The bore refers to the Inside diameter of the cylinder. The Piston will be nearly the same diameter, with the piston rings making up the difference. Convert the bore to area by multiplying by pi and dividing by four, and multiply by the stroke and the number of cylinders and you have the volume displacement of the engine.
The 200S is powered to life by an overhead cam four-stroke single cylinder 192 cc engine
Explain the advantages of four-stroke engine over two-stroke engine
90 degress
Four cylinders fire for each revolution of the engine.
A four-stroke engine operates through four key events: intake, compression, power, and exhaust. During the intake stroke, the engine draws in an air-fuel mixture. The compression stroke follows, where the mixture is compressed to increase its temperature and pressure. Next, the power stroke occurs when the spark plug ignites the mixture, driving the piston down, and finally, in the exhaust stroke, the spent gases are expelled from the cylinder.