I just got my 03 yzf 450 and I was tightening my chain and I noticed that my wheel blocks are off. One is on the 3rd grove and the other is on the 5th grove. I measure the set screws, both are 1.5’’ but the groves don’t match. The sprockets and chain seem to have normal wear. Let me know if anyone has ran across this problem. What is more important? Screws being the same or blocks matching up?