My car is a carnival. How can I clean the throttle myself?

Open the engine hood, remove the guard, and remove everything from the air cleaner to the throttle. Press the throttle coil by hand and see the butterfly valve of the throttle. Spray it on the rag with detergent and it will be clean. Spray it on the throttle, and pull the throttle while driving to avoid flameout. It's better for someone to step on the accelerator and keep it at 3000 rpm, and spray a can normally. You don't have to go to the repair shop yourself. Spray it every time you change the oil, which can effectively reduce the throttle sludge.