Isn't the refueling of Qianjiang Yue Yue motorcycle smooth?

Check whether the air filter and carburetor are blocked, whether the mixing ratio of carburetor is wrong, whether the vacuum diaphragm of carburetor throttle is damaged, and whether the position of oil needle is low. If the oil needle is not adjustable, and the oil filling is not smooth at medium speed or acceleration, you can also add a thin gasket under the oil needle to pad the oil needle as high as possible. Check whether there is any problem with the fuel tank switch and hoses related to the engine and carburetor, whether the spark plug and high voltage electricity are normal, whether the valve clearance is too small or whether the valve is improperly closed.