Jetmoto won't fire
 

I really need help with my jetmoto. Its a jetmoto 125cc type b. A while ago it sat for so long and when i finally decided to get it out it wouldn't fire. So i cleaned the carb put new fuel lines and a new fuel filter. After giving it a little bit of gas it started right up. The next day i fired it up and was riding it around my yard (without an air filter, didn't know if tht'd help) went inside to get lunch came back out side and now it won't fire. I used the kill switch to shut it off. It turns over but wont fire. Please help me i really want to ride it soon and it would be greatly appreciated.
Thanks, Steven