Last week I, out of the blue, got a "check engine" light. Close to my work place is a very large motorcycle shop that sell BMW, KTM, Ducati, Honda, Suzuki, Indian and Polaris. The Yamaha dealer is at 50 km away so I went to this shop to ask if they can see what code it is about (to know how serious the problem is). They don't have the scaning tool for Yamaha so I got no help. I ask them: you are so big, why not getting bigger by adding Yamaha (and Kawa). They said some brands don't accept other brands in the same showroom so they had to choose. Ducati would not accept Aprilia and Honda would not accept Yamaha.
I don't know about Yamaha, if tbey have such requests.
I live in Sweden, btw.