Would anyone know where I can get a carb for my 1985 yamaha ss 440? Its a single carb motor. the carb is a keihin carb with the throttle on the side along with the oil pump on the side of it. It was siezed up and my buddy was working on it trying to unsieze it the middle piece that holds the butterfly snapped. I can get pics of it if it would help. Does anyone know what I shoud do or where can I find parts for it???