Acceleration noise on Piaggio Typhoon 50

[skyrider]

Thanks RKS!! Well I checked and they are drum brakes with access from the tranny side. There is nothing on the other side except the exhaust and that's tight. Checked the crankcase and everything on the non-exhaust side is tight, so I'm thinking its something internal, maybe even something in the exhaust pipe. So your guess is as good as mine.