I recently purchased a 2013 S40 (Feb) and have only changed 3 things on the first oil change @ 750 miles
K&N Oil Filter
NGK DPR8EIX-9 Iridium IX Spark Plug
Motul 300V 4T Full Synthetic Double Ester Oil
Bike was running amazing after that
A friend of mine was cruising the bike when he had stopped in 3rd gear & tried to take off again without down shifting. He stalled the bike & while still rolling started it back uo, down shifted & rolled on
Since then there seems to be a higher pitched "tick tick tick tick" noises the whole time. I haven't noticed any real change in performance but being a noob to riding & owning a bike I am a little concerned

Any thoughts or is this just something that happens after the breaking period?