What happens when the carburetor of motorcycle is dirty?

Dirty carburetor of motorcycle will cause:

1, refueling is not smooth, and refueling with load has the feeling of fuel cut-off.

2, and the loss of engine life.

3, the idle speed is unstable, or the idle speed is stable but often flameout.

The tail gas of the car is black smoke.

Extended data

Common faults of motorcycle carburetor

As a precise mechanical device, carburetor plays an important role in the engine and can be called the "heart" of the engine. From a professional point of view: the failure rate of carburetor itself is extremely low. But in actual use, the failure rate of carburetor is often not low. There are two reasons:

1, because all the working characteristics of the engine are related to the carburetor, such as acceleration, transition, fuel consumption and so on. Therefore, when judging the cause of motorcycle performance failure, the failure of electrical devices or other mechanical parts is often confused with carburetor, which is misjudged as carburetor failure and replaced. For example, the filter failure caused impurities to block the carburetor, and replacing the carburetor eliminated the failure, but did not solve the fundamental problem.

2. The quality problems of related parts greatly shorten the service life of carburetor. For example, the cleanliness decreases and the wear of carburetor parts increases.

Several common faults of motorcycle carburetor are: difficult starting, unstable idle speed, poor transition, insufficient power, oil leakage and high fuel consumption. Only the fault of carburetor is selected for analysis. But in fact, from the point of view of the whole machine, there are many factors that cause the above failure phenomenon. For example, it is difficult to start: the ignition system is disordered and the spark plug electrode gap changes. For example, the idle speed is unstable: in order to reduce the noise of the engine cylinder head, the motorcycle factory often adjusts the engine valve clearance too small, which leads to the deterioration of the intake and exhaust state of the engine, and the idle speed is unstable or even not idle. Users should make a detailed analysis according to the vehicle failure.

References:

Baidu encyclopedia: carburetor