4-stroke engine: advantages and disadvantages
If you want to get a scooter, you are faced with the problem of which motorization you prefer. Two-stroke, four-stroke or even a scooter with an electric motor are at least available. What are the advantages and disadvantages of a 4-stroke engine compared to a two-stroke engine, for example?
Because not every customer undergoes an expert training course or one before buying a scooter Having completed several years of training in the automotive sector, he must make his decisions with the help of a few tips meet.
Two-stroke and its disadvantages
The common engine concepts (four-stroke and two-stroke) have both advantages and disadvantages.
- The two-stroke engine shows a significant difference compared to the four-stroke engine.engine under construction. Two-stroke engines are relatively simple because there are no camshafts and valves.
- Two-stroke engines are usually lubricated with fresh oil. Oil is mixed directly with fuel (petrol), especially in older engine models (mixture lubrication).
- In the meantime, fresh oil lubrication is very often done using a separate oil tank in combination with a pump. The so-called separate lubrication makes it possible to better regulate the required quantities.
- It should be noted that there are two-stroke engines with and without a mixture. Because there is also the diesel two-stroke.
- Many perceive a two-stroke engine to be a little more spontaneous when it comes to throttle response and acceleration. The "scent plume" is seen as a clear disadvantage. The co-burning oil is responsible for this. There are different opinions about the sound, ranging from sporty to annoying.
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Advantages of the 4-stroke engine
- The 4-stroke engine in a two-wheel scooter works in a similar way to a car or motorcycle. The basic principle is the same.
- Since the four-stroke engine is not equipped with fresh oil lubrication, you have to go into it more maintenance invest. At least that includes a regular oil change. You must also check the valve clearance and correct it if necessary.
- With this kind of maintenance, the advantages of the four-stroke engine come to the fore. Because the 4-stroke engine thanks you with its quiet running behavior and lower consumption. The generally quiet engine noise is also an advantage.
- The disadvantages compared to two-stroke engines include a reduced power density and a more complicated structure of the engine. With a corresponding technical effort, the power density can be increased.
- With the same performance, however, the space requirement is higher. Finally, there is a greater weight to be recorded, not unimportant especially for two-wheelers.
A Scooter as a four-stroke engine offers you comfort and reliability in addition to low fuel consumption. Disadvantages of the machines can be the sometimes high prices.
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