I purchased some 2012 SSS YZ450 forks on eBay for my 2008 WR450. I noticed when I installed them that the top of the YZ forks is slightly smaller than the older WR forks and the top clamp doesn't even tighten down on them. What should I do? Should I purchase a YZ450 top clamp from the same era? Maybe a post-2012 WR450 top clamp? A whole new triple clamp? Any recommendations? Thanks!