My (slow) Teddy Ruxpin!!

Look who came in the mail yesterday!! He works quite well, (I purchased him under the assumption that he does not work at all, because the ebay listing said "NOT WORKING" in it lol) his eyes, nose, and mouth servos work really awesome. (they are quiet, too!) The only problem is that his cassette drive belt is stretched/broken, making him slow, and making his mouth and nose only work when he wants to. I'm a bit scared of opening him up, because I'm an absolute noob at technology, but it needs to be done. I also have to remove his fur because they need to be cleaned, aswell. And for some reason he does not like the tape he came in the mail with (The Medicine Wagon)