I bought a used secondary clutch for a 96 zr 580 efi. When I put the "new" clutch on the spacing w/ the stack of washers is different. There are about 5 small washers that tighten down on the large spacer that slide onto the shaft. There are 2 larger washers that look like they are there to tighten around the key way but one of them is still loose. What is the right way to do this?