That's normal, sounds just like mine. The clutch basket makes a lot of noise on these bikes. You can get them modified which cuts the noise level and makes the engine smoother up to that 3000rpm level where the engine naturally smooths out.
Your just at that mileage now where you'll start to notice the clutch basket slap, mine started a 20k miles.
It does no harm, fix it if it annoys you or just ride away at it.