The bike I built for my son with the china girl engine had the petcock go bad and dump all the fuel out through the carb in the middle of the night.I replaced the petcock then with it set to open position fuel still came out the filter.I took the carb apart to check the float it appeared the tickler was stuck down a little and interfered with the float.I got that issue sorted put it all back together and it still wouldn't start.I had spark at the plug so I kept trying to start it but it was already so flooded fuel was coming out the exhaust.I changed the spark plug because the original was a bit wet.It still will not start.I am suspicious the engine is full of fuel from sumping when the petcock failed.I'm looking for any advice at this point........