The refueling handle of Haojue Suzuki motorcycles is very tight. Can it be solved?

If the throttle handle of Haojue Prince Suzuki motorcycles is very tight, first of all, check whether there is a problem with the balance weight at the right end of the handlebar and block the throttle. If there is nothing wrong with the counterweight or the balance is not fast, check whether the throttle line is rusted or damaged, whether the carburetor throttle plunger is stuck by something sticky, and whether the throttle handle itself is rusted or too dirty. If it is a problem with the throttle line, it can be solved by cleaning the throttle line or replacing it with a new one. If it is a problem with the throttle handle sleeve, it can be lubricated and maintained as appropriate. If it is a carburetor problem, it is usually enough to clean it carefully.