Hi, I'm wondering what you guys think about the (penny) tingng noise of my 1972 Yamaha LS2 is making. I don't know if this is normal or not. I going to start commuting with it again and my wife is planning on doing the Lake Eeri loop event with me on the bike. 1972 Yamaha LS2 2stroke 100cc The only mod i have done is taking out the baffle packing to it. http://s96.photobucket.com/albums/l200/usaf060stud/?action=view¤t=4fccdf4f.mp4 Thanks, Frank