New 16 tooth front sprocket noise?

[Blitzburgh7sb]

2003 GZ250, 6500 miles. New rider and bike owner.

I just replaced the front sprocket with a 16 tooth from bikebandit. Easy instll overall but had a hell of a time getting off the 30mm nut. But after doing the change I now hear a low whiny noise that patterns the sprocket speed. Checked to make sure all is tight and the nut was set to correct torque. I know its not the valves b/c one, if already had a noise from them and will be checking/adjusting them soon and two, its only there when the sprocket is turning/bike moving, not there at idle. Has anyone had this issue? Also, I noticed a slight play in the sprocket that may or may not have been there before. When moving the bike in neutral forward and backward there is about an 1/2 play before engaging the front sprocket??? Bike runs fine except for the noise. Should I be alarmed?

Thanks

"From my perspective, you learn more in failure than you do in success."

"We don't live in our fears, we live in our hopes."

- Mike Tomlin


Blitz