Hey guys, need a little help with a diagnosis. I have the 2007 yfz450r BB and was riding yesterday when 2nd gear started to cackle. I thought it was my chain or my case saver rubbing and took everything off and ran the bike with no chain and still have the noise but only in second gear.. ITs constant and only gets worse when i give it more gas... any idea what it is ? Iv never has a trans issues so im in the dark on this one.... thanks...

 

You'll get a better response on yfzcentral.com... I swear I've read someone's post over there that had a similar issue...