I have a two stroke Gilera 125 cc and I noticed that it drips oil from exhaust so my bike has very little kilometers it has a little bit of white smoke when I turn it on so is it a simple jetting problem because of the winter and I run it every week just to make sure the carburetor won't be clogged

To me that sounds about normal. Just turning it on for a short time may be allowing the oil in the exhaust to settle in the muffler from being very cold. Also you might be heavy on the oil to gas mix.

Thanks for the answer I guess it's the cold and the heavy mix and the low quality gas here in Serbia

Thanks for the answer I guess it's the cold and the heavy mix and the low quality gas here in Serbia

No Problem, you are welcome