Just started yesterday, or at least I first noticed it yesterday. Backed my Gunner out of garage and started it. After I put my gear on, I sat on the bike, and pulled in the clutch and noticed a very low volume whine or whirring noise. Not very loud, but enough for my poor hearing to pick up. Definitely related to having the clutch pulled, and I think I can pick a very slight change or additional buzz as well. I know, not a lot of good information, but any ideas or suggestions?