lol. I put my stock carbs back on cause I sold my other set up, an Im waitn for my new setup. But anyway I had the same problem, even had to add gas to the cylinder anit ran until the gas ran out.
So picked the quad up at the nerf until gas pores out the over flows. Let it down an kicked it over fired first kick, did it again today an it fired after pickin it up. Try that, means your floats are adjusted wrong my pilots lean too maybe yours is also. my new shit will be here soon so I aint F-n with it.