After a bit of homework I think my 'clutch rattle' is in fact a loose primary chain.
Firstly to end my confusion..is a starter chain the same thing as a primary chain?
The rattle quietens down a bit when you pull in the clutch or I think maybe when you're riding (hard to tell with a helmet on and engine noise etc).
How important is it to get this fixed? I'm game to have a go at it with my trusty Haines manual in hand (is that dumb for a novice?) but I don't want to rush into it if it really isn't a safety issue.
Is it more likely to be a worn tensioner or worn/stretched chain? The bike has done at least 80,000k's could be as much as... well who knows?
Appreciate any feedback