I have a 2008, and I road in a downpour last season, and the next few times I rode after that, I noticed that my bike didn't seem to have that "pull" like it use to. Idk if the rain has anything to do with it, or its all in my head, or what. I've my bike for about 5 or 6 years, only 8k miles on her, so I'm not sure if I just "got use to it" all of a sudden. The bike started and ran fine, but it felt like it was down on power, I found myself giving more throttle towards the top of first to try and feel that "umph" feeling from the torque, but it was more tamer than usual. Is it all in my head, or could there be something wrong with the bike? I've since then, gotten new gas, replaced the air filter, and it felt the same the last time I rode it. Could there be anything wrong with it affecting the acceleration?