More than likely the belt is taking some time to, "break in", to the pulley. Just like a chain and sprocket the belt and pulley are going or may never break in to match each others' surface.
When you put a new rear sprocket on a motorcycle or bicycle, you have to get a new chain. If you don't, the chain skips over the sprockets' teeth. This is because the chain is broken in to where it will only work with the original sprocket because therre surfaces match.
The belt is squealing on the pully from vibration which cause noise. There is nothing really mechanically wrong, just irritating.
You can go to an auto parts store and find, "Belt Dressing", wich helps break-in and quiets the belt noise.
Also, remeber you might want to check the tension in the belt to make sure that is not the issues.
Sunday, September 18th, 2011 AT 9:42 PM