Hi All - I'm brand new to dirt biking (got to hang up the street tires when the baby was born ). Anyway, my buddy and I bought two 05's over Memorial Day and have been ripping around getting used to the dirt. We're completely addicted and having a blast. Being in the NW there's a LOT of mud and ruts and steep single track riding. Needless to say we're riding pretty slow as we get our legs underneath us, and have been having our bikes overheat a lot on these steep muddy trails. Any ideas what we can do (besides ride faster - we're working on that one ) to keep the bikes cooler? Also - The links I've seen to the uncorking mod all point to an older WR250. When we got into our exhaust pipes the piece we pulled out was shaped a lot different then the photos in the ThumperFaq link. Does anyone have updated instructions for the '05 WR450? Thanks - looking forward to learning a lot from you all.