MOPED ARMY

what the guy above said but ill chime in since I've worked on gy6 engines. take apart the carb and clean the jets it may just be clogged , I doubt the petcock is clogged unless you left it sitting with gas for a whole summer , that being said try to manually choke it swell , place your hand over the air filter port and try starting it at the same time , you might need a second hand. also try the kick start if your model tao tao has one , and in some occasion I had to hold the throttle while trying to start it (PLEASE REMEMBER TO HAVE THE BIKE ON THE KICK STAND BEFORE ATTEMPTING THE LAST ONE ) lol thats about all I can say , if the engine itself is fairly new I wouldn't recommend anything else