where is the tapping coming from (engine) valves maybe? if they adjusted them recently they may have set them up on the loose side (since they get tighter over time) if they are loose they will tap. Which is normal since it will get tight later on.
But if its only happening at a certain rpm range that doesn't seem normal, your bike should be under warranty. If you are not sure have them take a look at it.
But if its only happening at a certain rpm range that doesn't seem normal, your bike should be under warranty. If you are not sure have them take a look at it.