Vespa GTS handlebar

Hello, I picked up my new Vespa GTS 125 last Thursday. When driving or ranking, I noticed that when you hit the handlebar to the right, a Knartz sound arises. It sounds like rubber or plastic rubs against each other. I had a Primavera 50 before. However, it also has a not so strong shape. It is the current model/construction year. Has someone experience with this topic or has a tip, w Is it possible to fix this? Thank you for your support.