the fuel is what it is: premium pump gas. I have a vague recollection that it's not as bad here as in USA, but don't really know.
Tank was full when it died, but failure may have started earlier, it was occasionally hard to start in Moab (where it was on the American gas, come to think of it !)
Due to the current distributer confusion in Canada, cannot even get parts for the 310.
I've not seen any info on aftermarket pump to fit the x-lites; somebody chime in if they know where to get it.
Looking at the TE511, KTM 350 EXC or KTM 500 EXC. All fuel injected