Hi blokes help needed, I've been getting a bit noise from my 2009 wee lately, at first I thought it was a loose chain, but after checking and found the chain is fine I'm thinking it's a clutch bearing problem, here's what's happening, cold bike I'm getting a sound of beer can being mangled up to about 30/35 mph, when I pull the clutch lever the sound goes, leave it out and it's back again, I've no issues with the clutch slipping no matter how hard I open the throttle, oil level good and checked regularly, no issues with vibration, bike really running well other wise, only 14,000 mls on clock, original owner sunshine rider, any ideas out there would be appreciated