I purchased the Yamaha AIS kit with the YZ throttle stop. I took the throttle stop out of my WR450 and was ready to install the new stop. I noticed that the new stop was the same length as the stop I just removed. Did I already have the YZ stop in my 06 WR450 straight from the dealer? Did Yamaha make a mistake in my kit and put a WR stop in the kit? Can someone measure the YZ throttle stop and post the length or PM the length?