Tick tick bloody tick....

[Mike01]

I had exactly the same ticking on mine which developed at a similar mileage.
It was due to an excessive valve clearance on the far right inlet valve, just next to the camchain 
I set all the clearances to within spec & the ticking was no more.


Edit: On a general note, valve clearances can tick & worn chains rattle.

Cheers  :'(
That's not a job for me, will have a chat with the garage and go from there...