Who knows how to adjust the carburetor of a motorcycle? I want to dilute the oil. How should I adjust?

Unscrew the small cover on the carburetor, pull out the throttle valve and the oil needle together, and remove the oil needle clamp in the throttle valve. You will see that there are five small grooves on the oil needle, and the standard position is in the middle. If you raise the clamp, the mixing ratio will become thinner, and if you lower the clamp, the mixing ratio will become thicker!