Today the weather was fairly nice to I took my Busa out for a nice ride. Then I met up with a few friends and started doing some 1rst gear power wheelies..after doing a few wheelies I noticed when I got hard on the gas in 1rst I heard a noise coming from the back of the bike and it wasn't accelerating hard anymore. I'm no gearhead or bike expert...all I like to do is ride them but I do take care of my bike. I think I may have broken the cushdrive or who knows maybe it's something else. Does anyone know what the problem maybe? The kind of noise it makes when I hit the gas hard in 1rst gear is a loud clanging noise or like a loud ticking noise. The bike is still new and is under warranty so I'm not too worried about it but I want to get it fixed a.s.a.p before it gets any worse.