Not to long ago i posted about an engine noise. I took my bike in for the 6500 mile tune up, when i took it in, i sounded and ran great. One i got it back, it was making this clicking noise. The dealership thinks that it is piston slap. Is it possible to get piston slap from starting the engine without oil. Of course the dealership denies anything like could ever happen. Why does this noise come out of no where after the dealer has the bike...this is so frustrating. Any help guys? Thanks.