If you google it,,,It is a very beign common problem with the busa during your first 1500-2000 miles,,,,Mine did it as well,,It is being said that it stops after the transmission mats,,I assume your bike doesnt have too many miles on it,,The manual recommends to gear up and down alot during the breakend period,,It will go away after a period of time on its own,,,no hard shifting is needed nor recommended,,you dont want to bend anything,,,The false neutral has been seen in between several gears,,,,but mostly reported between 5th anf 6th