I have a 2005 yamaha wolverine 350 that is acting up. It back fires and it wont run without the choke being on. Even when the choke is on it still wont run for too long. And it is not a foul spark plug becasue me and my dad put a brand new ngk plug in it. I went riding 3 weeks ago and my dad things something got in the carbuerator. About a year ago me and my dad flushed the carb and found a lot of debris in there and a dirt clod. We are thinking it is that carb again but were not for sure. My dad doesn't know how this problem would happen again because after that happened last year, we put a fuel filter on it.

Any advice on what to do would be great!

Thanks
wolverine350guy