Excuse me, how much does it cost to change the valve of a women's motorcycle?

Generally, the price of a pair of motorcycle valves (intake valve and exhaust valve) ranges from 40 to 50 yuan, but it is troublesome to change the valves, and it is necessary to remove the disassembled cylinder head to change them. Some scooters have to remove the engine from the car, remove the cylinder head and change the valve, and the labor cost will be more. In addition, the valve price is around 100 yuan, which is relatively normal.