Ordered the YZ stop screw, got it, and it seemed kind of long. Took out the shortened screw, which measured approx 23mm, which I believe is the correct length. Measured the new screw, which is part # 5GS-14591-00, and its approx 1-1/4 " long. I believe that is the original length of the stock screw. I let the parts fool find the #, it was off the # I got here @ TT, and it cant be right. Moral of the story: NEVER LET SOME FOOL TELL YOU WHAT PART TO ORDER!