OEM parts for 2011 Yamaha Maxi-Scooter Models Where can I find my model number? XP500 XP500 (4B5W) [010] XP500 (4B5X) [010] YP250 YP250 (4D94) [010] YP400 YP400 (34BJ) [010] YP400G YP400G (34BK) [010]