I received a 2005 Rhino from my brother in-in-law. The Owner's Manual that was given to him by the previous owner says it is a RHINO 660 YXR660FAT. When I looked up the VIN the site, VIN decoder - Vindecoderz, said it was a "Yamaha Rhino 700 Custom 2005". VIN number is 5Y4AM04Y15A012515. Need to know what engine I have before ordering parts. Is there a way to tell a difference between a 660 and a 700?