A brake snake if you ride anywhere near rock or logs. The lever is soft and bends easily, but to much re-shaping it will snap off. Check and make sure your air box isn't rubbing the frame. If it is, cut some small hose and slice it up long ways and put it over the frame rails by the air box. The drain in the air box is on the small side and doesn't work real great if it's full of debris. I cut the end of it off so it would open up a bit more.
+1 on all of the above posts as well.
Then just ride the piss out of it......