hi guys
ive had a Cbr600rr 03 for approximately 6 months and pretty new to sportsbikes,but here’s my issue
Ok When I start my engine from cold it’s pretty quiet up to around 40-50 degrees,but then I’m hearing a slight/faint “knocking” noise! I’ve tried to listen but can’t find what part of the engine it’s coming from. When it reaches normal operating temperature (79 degrees) the knocking noise disappears! Definitely coming from somewhere on the engine and it’s not a ticking noise,but doesn’t seem to speed up if I blip the throttle or by pulling the clutch in doesn’t change this,any ideas guys and do I need to start worrying!

Definitely runs revs and sounds perfect at full operating temp
ill try and record a vid,but I’ve had an hour today listening down a screwdriver and I’m not 100% but think it’s coming from the clutch area,possibly getting better as the oil warms up maybe?

Well it turns out it wasn’t my clutch,I’ve been filling up with 97RON petrol and I’ve just put a tank full of 95 through it and the knocking is getting less/quieter already!
Do the 03 model have a knock sensor,or has anyone else had this regarding the higher octane fuel causing this?

here is a YouTube link,you can hear it just!