Engine rattle/tapping on startup

[Volvi]

I reckon its the cam chain tensioner that gives that rattle sound on cold start up. I reckon most bikes have that as norm, probably goes quieter when it moves up one ratchet. But to date I have never heard of any failure of this item since the recall back in 2000. Mine rattles a bit when still cold, hasnt worried me......ermm this is the continuous "whirlee" sound not the tapping as suggested above. and I still havent done my shims yet....ever lol. maybe at a 100k.