You can probably order the specific part at www.yamaha.com. If you email them a description of the part you need, someone will probably get back to you with a part number and a quote within hours. That's what I did with Tascam. The rest was simple, with just a screwdriver needed to effect the repair. Just take a good look around to see where the belt needs to go and how you can get it there. Sometimes a screw or two need to be removed so you can get the belt past a structural member. Just make sure you have a plan before you start removing screws willy-nilly.