Cam Shaft adjuster on 2004/5th Gen VFR 800

I have a 2004 5th Generation VFR, recently when I start my bike I here a click sound which last for a minute or so. I thought it was low oil level. After it continue, I brought it to a motorcycle mechanic who told me that it was the 'Camshaft adjuster', has anyone had this challenge and has anyone replaced this themselves and is it difficult?

True Brit...

:biggrin:

 

Perhaps it's the cam chain tensioner? Those seem to be a fairly common issue on the 6th gen's. BTW I don't know how the generations go in the UK but in the states, the 2004 is a 6th generation....?

 

thanks... gens are the same.... everywhere!