I have an older Polaris Sportsman 500. I use it primarily as a plow for my long mountain driveway. It runs well in the colder weather but won't even start in the warmer weather. This summer, after trying to get it to start, I opened up the air filter box and found about a half inch of fuel inside and my air filter had disintegrated. My question is what could cause this and how would one go about solving this issue. I have taken the carburetor off and opened it up (figured it is due for a rebuild) and it looks pretty clean. Also where could I find the screws for the carburetor as two of the screws were so striped that I had to drill them out? Thanks you all for reading this and I am open to any suggestions that you all may have.