I had water in my gas and I drained the tank and bowl. Now when I try to start the quad it doesnt want to fire right up like it used to do. I have to choke it or hit the gas while starting it to get it to fire. Once i get it fired if i let out the choke or off the gas within the first 30 seconds of it being started it will die. But if i dont let off then it wont die and after about 30 seconds it will idol without dying... Any ideas what could be causing this?