I have a problem with the carburetor, overflowing
You have probably damaged the float valve, it is very delicate, depending on how much pressure you applied, depends on how much damage, the float valve is a small pin with a point at one end, when the carb fills, a float pushes up on this pin, and the point of this pin blocks the flow of incoming petrol.
Remove the carb, remove the the screws holding the bottom of the carb and remove it
Inside the bottom of the carb is the float, it will be made of brass or plastic, it is delicate and very easy to bend, be careful, the float hinges on a pin that can be slid sideways to remove it, look at this closely, near the centre of this pin there should be a metal tab that pushes onto the float valve pin, sometimes the valve pin is held in a slot in the tab.
Slide out the float hinge pin, and gently lift the float upwards, check that the float is not punctured by shaking it gently by your ear to make sure there is no fuel inside.
Now you should be able to see the valve pin sitting in its hole, lift out the pin and examine closely at the sides of the point, any wear, and it will not be able to stop petrol and will overflow, also, even the smallest speck of dirt will cause this valve to fail, and the carb to overflow, all must be spotless.
the valve pin is not repairable, if it is worn or scratched, it must be replaced, on old bikes the pin point was made of metat, on newer bikes the point is made of a black rubber to give a better seal, both are very easy to damage, good luck, H