Keihin (PTG) style CVK PD19 (19mm) carbs with auto choke made in Japan with electronic choke for 49cc 139QMB engines used in most Asian/Chinese scooters.
STOCK CARB NOT HIGH PERFORMANCE Add larger main jets and pilot jet for better performance
Four Stroke Carb 139QMB. This is stock carb for Geely, Tank Urban 50 all models, Roketa 49.5cc scooters like the Maui plus the Verucci 10D 50cc and Leopard and Scorpion models.
This engine (139QMB) is used in scooters from Kymco, Diamo, Schwinn, Q Link Geely, Roketa, Tank, Avanti, Meitian, Strada Verucci Pep boys and most 50cc four stroke scooters plus many others made in China.
Fits all Four Stroke scooters using the 139QMB Engine.
This carb can be upgraded with new main jets in the sizes 95, changing jets and using High Performance Air Filter, some mods might be needed to add HP Air Filter to this carb.
Your carb is most likely bad if you have cleaned and adjusted and it is bogging down when you give it throttle and not reving up. We do not have individual parts for carb so you will need to get complete carb, check if choke is bad disconnect and see if any difference when starting or ridding, the choke can be removed and hooked up to a 12 volt source and it should move.
48 Lower States Only