Help!! I have an Arctic Cat JAG ('91) that was running like a champ 3 days ago but today when I started her, she would only idle and when the throttle was pressed she would bogg down like the engine was flooding, or possibly there is water in the fuel. The thing is it's the same tank of gas as I ran off of 3 days ago. I'm pretty sure my carb is clean. My plugs were black indicating the fuel is not burning fully. How can she go from marathon runner to slug from sitting?