Moto Hyosung GT650

Hey everyone, I wanted to know if any of you have taken apart one of these motorcycles. I'm worried about a strange knocking noise from the engine, but I already took it apart and there's nothing wrong with it. It's a new motorcycle and I've tried different oils. It's a 90-degree V-twin engine with double overhead camshafts, like the one in the Suzuki SV 650. Thanks!