Wearing parts refer to parts with short service life. If the wearing parts of motorcycle are not replaced in time, it will not only damage the vehicle, but also leave hidden trouble for driving safety.
We usually use 150cc, 300cc, 600cc exhaust volume to express the size of the engine, so what does the exhaust volume mean? Is it how much gas is being emitted?
When idle speed is fast when slow, it is often said that the idle speed is not stable, or idle speed jitter and so on the problem, idle speed is idling the lowest speed, after the car generally want to idle hot car to transition.