GasGas 300EC 2011 keep stalling without choke

[smitten]

Hi,

after about 15min of riding, my bike stall. It sound like something wrong in a the carburetor. After a couple of try to start the engine, it finally started and stall again after 1 min. keep doing that a couple of time until I can't started the bike anymore. I decided to turn On the choke and give a try and the bike started. I was able to get home with the choke On, but as soon as turn off the choke, bike stall.

Any idea what could be the problem?

Thanks