Is it normal for Wuyang Honda motorcycle to automatically increase or decrease its speed after releasing the accelerator?

Abnormal, the speed should fall back quickly after turning off the throttle. If the speed drops too slowly or repeatedly after releasing the throttle, check whether there is any problem with the carburetor and air filter, whether the throttle pipe, throttle handle and throttle are stuck, whether the mixing ratio is wrong, whether the valve clearance is too small or closed incorrectly, and whether there is slight air leakage in the intake pipe.