This should help with the used parts finding process and to see what parts came on different year bikes. Go to www.motogrid.com. click on the Yamaha logo and on the right side click the pulldown in the quick part lookup for the brand of bike then put in the part number that you are looking for. Leave the model box blank and it will tell you where that part number was used on all year bikes. This is a great help when searching for used parts.