So I pull out the 2001 Yamaha Breeze ATV to get it ready to ride early next week and it won't start....that's odd, it ran great when I put it up about 2 months ago. Doesn't even try to start....engine is turning over just fine but it won't fire up. So I push it into the garage and decide to try it later. Well, I try it again this evening and same thing...no start. So I decide to pull the air filter cover off the airbox and behold there's like 4" of gas sitting in there!! How'd that happen??? It wouldn't start because it had 0 air due to all the gas trapping the air from the engine. After pulling out the air filter and getting rid of all the gas sitting in the airbox, it fires right up no problem. Anyone got any thoughts on how that much gas got in the airbox?? Obviously it backed-up through the carb, but even that's odd because the ATV has been sitting level and the carb even tilts ever-so-slightly toward the engine.... I'm at a loss? Ideas?