probably the stupidest question i've ever asked. a friend of mine dropped of his carb to look and see how it looked inside since it's been sitting on the shelf for about a year. i removed the four allen screws that hold the float bowls on and they dont want to come off. i pried them oh so gently and not budging. i'm i missing something? thanks for any help. i dont want to buy this guy any parts if ness. and are the bowl gaskets reussable when the bowls are removed.