I also have the shown gap. Perhaps there is a spacer ther we can not see but it is most certainly note loose. Did you show this to technicians??
Yes indeed, they took some pictures and have sent them to Yamaha Canada. They give me back the bike saying that this was normal. They have not dismounted anything. Picture, phone call and voilĂ everything was fixed...
They are Yamaha specialist so.... They should know what they are talking about, ehhhh right?
If it is not getting any worst I will wait until the end of the season and inspect it myself.