all european bikes needed was good electrics and carby's to beat the japs and they did that by using the jap stuff....kehinn carbs and kokosan ign's and now there EFI....if you cant beat em, join em
in fact most bikes in the world ended up with Japanese carbs and ignitions, and a lot with forks and shocks. Harley, Ducati. I think it is the Japanese can produce precision components much better than anyone. Its the whole zero failure thing.
I wonder what state of tune crosses the line into unreliability with a 4 stroke, definitely Yamaha, Suzuki can produce 4 strokes like the DRZ and TTRs etc that are stone cold reliable.