Chosen Solution

It plays the cassettes to fast does anyone know how to fix that?

The speed of the tape is controlled by the pinch roller and the motor that turns the pin next to it. If the tape is moving too fast, then this is either not moving the tape and the take-up reel is moving it or the motor speed is wrong. If your unit is the WM-AF48, any belts should be changed and the pinch roller at least cleaned if not also replaced. This should solve the problem. Dan