You might try your local
Radio Shack. If you arent successful there you can try the Yamaha Service Center. Since the guitar is new, is the part number in your manual? If it is you are in luck. The reason I say this is I ordered some parts for an old Yamaha Electric and after one hour of frustration I finally got the order in but I was sent the wrong screws and the rest of the stuff has to come from Japan (4 to 6 weeks). The problem is that they service all the stuff in Yamaha Music so you cant expect the order taker to know every instrument. If you have a part number then piece of cake. Anyway, I got the toll free number after I talked to them for an hour and burned my minutes. The toll free number is 888-892-6242. They are on California time and close at 5Pm Mon - Fri. You will need the model number of the guitar and have a credit card ready. Hope this helps.