The chain and sprockets may be out of spec and not meshing properly and may need to be replaced.
Mine started doing that around 30,000 miles. The chain was no longer seating properly in all of the teeth on the rear sprocket, and it was making the same noises you are describing.
Put the bike on a rear stand, put it in neutral, and rotate the wheel by hand and watch the chain and sprocket. If they do need to be replaced, then replace both the front and rear sprockets and the chain all at the same time. I got my set at motomummy.com
(45,000 miles and counting) | www.ZX6R.us
M4 GP Slip-on |
ASV C5 Levers |
Spiegler SS Brake Lines |
SpeedoHealer | PureONE Filter
Custom FE |
Custom Blue LED Lighting |
K&N Air Filter |
Vortex Sprockets -1/+2 | EK MVXZ Chain
Last edited by Strider007; 11-13-2012 at 09:04 PM.