Vacuum controlled fuel tap for 50cc Chinese scooters with plastic tank (eg newer types REX RS and Peugeot V-Click) and most China 4-stroke scooters GY6 with 125cc-180cc displacement.
Often a malfunction of this component leads to starting difficulties and engine misfires while riding.
The diaphragm of the fuel tap hangs and does not release the fuel or releases it insufficiently.
Only complete replacement will help to remedy the problem.
Please check the product photo before ordering and compare whether this type of fuel tap is installed on your own scooter.
An exact vehicle assignment we can not ensure.