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?
The chain is one of the main parts of the motorcycle, but no one likes the chain maintenance work, the chain cleaning and adjustment is not so difficult, it can help you run farther mileage.
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.