backfiring

This is my first bike every think is how it was when it was running stick needle height and so fourth. I got spark and fuel. It was flooding and then I cleared it out. Still won’t start I got a couple of back fires and that is it. I think it might be flooding. I could use some good help. THANK YOU

When my bike backfires it shoots flames!!! Is there a proper way to make it do it whenever I want because it's really cool?