How to adjust the mixing ratio of motorcycle carburetor?

 Although with the advent of the four national emission standards, carburetor models have become a product of an era, but there are still many models using the oil supply system is the carburetor, so it is necessary to discuss the maintenance of the carburetor.

Many novice motorcycle riders may hear from veteran drivers that if the Motorcycle Carburetor mix is well-tuned, it will not only enhance the power of the vehicle, but also save more fuel, although there are exaggerated components, but also factual basis .
Since the mixture ratio of the motorcycle carburetor will directly determine the combustion state of the vehicle, and the combustion state of the vehicle will directly determine the fuel consumption performance and dynamic performance of the vehicle, this statement is still reasonable.
Not to mention a dogmatic how-to, as there are many methods online but not for every motorcycle, a brief introduction to motorcycle carburetor mix ratio adjustments.
Let us briefly talk about the mixing ratio of motorcycle carburetors. The so-called mixing ratio refers to the oil-gas ratio after the carburetor atomizes the fuel. This ratio has no fixed value for the carburetor model, because the fixed value is important for the mechanical fuel supply. The system is a joke.
First of all, when adjusting the mixing ratio of the carburetor, the air filter must be checked. Only on the premise of sufficient intake air can the mixing ratio of the carburetor be effectively adjusted.
Secondly, the mixing ratio must be adjusted according to the color of the spark plug, if the spark plug is yellow-brown, do not adjust the mixing ratio, no matter if the vehicle has any adverse reaction, because it is not caused by the mixing ratio at all.
If the spark plug is black or white, adjust it according to the specific situation. If the spark plug becomes black, you need to increase the intake air volume, which can usually be adjusted by rotating the mixture adjustment screw outwards, basically keeping it about a circle.
If the white color of the spark plug is basically caused by the mixture being too thin, it is necessary to reduce the amount of intake air at this time to improve the combustion state of the engine, usually one and a half turns can be used to adjust the mixture.
Through the above adjustment, if the idle speed is unstable, the tightness of the idle speed adjustment bolt can be appropriately increased or decreased until the idle speed is stable.
The above is a simple way to adjust the mixture of motorcycle carburetor, but I recommend that you do not practice it yourself when you are idle, if the vehicle fails, you can make appropriate adjustments in combination with this article.