No direct experience with a RG.
I know there are some models that have developed broken wires in the harness around the neck. Don't remember if I've ever heard of this on the RG though.
Since no fuse is blown it would seem likely to me that there's a broken wire somewhere. Or perhaps a connector with corrosion or loose. Maybe pull and resaet fuses too. Just some ideas to try.

 

thanks we will give it a try

 

Has he replaced the grips or bars lately?
Sometimes a wire can get pinched in the handlebar switch cluster and cause all kinds of havoc.

 

no has not messed with controls