Im posting this for a friend that does have the internet at home. He has a Honda Foreman 450 S and recently added a snorkit snorkel kit, OEM 135 Jet, and a K&N filter. He moved the C-Clip to the lowest setting on the needle and added a washer as the snorkit instructions told him to do. He also adjusted the fuel/air mixture screw 2.5 turns. We both have done this exact thing but I have a HMF muffler and he still has stock. When he runs his 4 wheeler now, fuel comes out of the overflow tube at a consistent rate....even continues after turns it off for a little bit. Any ideas what would be causing this?