I think you mean "road legal EFI"? KTM/Husky have had road legal EFI bikes for years (IE: KTM 690, EXC series)
Husky currently have NO road legal bikes in production in the USA. Under BMW they had the Terra and Strada, no longer produced. BOTH KTM and Husky were late using EFI on Race bikes. (at least here in Motocross/Supercross).

There are still MANY Carb bikes ridden and sold OUTSIDE OF THE EU. Millions in fact. This is the focus of my comment as some of the most popular RTW Enduro dual sport bikes use Carbs.

My point was ... could EFI Tech learned and developed from racing (motocross/super cross) trickle down to common dual sport bikes that still use Carbs? ... like KLR, DR, XR, XT once EFI is adapted to these bikes?

KTM/Husky had EFI years before and Beta tested their systems on Road legal bikes. I think the Japanese may go another way ... maybe the Japanese can IMPROVE on those systems over time from things they learn racing? Make them suitable and more reliable for a travel bike?

Good point, and something I would hope the OEM's can improve upon. Seems the Japanese are quite good at reliability and longevity in their systems.

Yes, but many Japanese Carb bikes are still sold in USA, Canada, Australia, NZ, Latin America and other parts of the world.

Regards Yamaha: I think you mean Yamaha are the only Japanese company to make a road legal EFI single cylinder, dual sport bike? Yes? (see WR250R)

Because, as of now ... ALL the Big Four make road legal single cylinder DS bikes ... and they ALL have Carbs!

In the USA, this is true. But Kawi make the KLX250S with EFI world wide, but USA model still gets a Carb!

All the Big Four and KTM sell small (50cc to 150cc) off road bikes (for kids). I don't know if you have these types of bikes in EU or not .. ?? here it's BIG business ... and just about every one use's a Carb.

No doubt OEM's will have to change soon as EURO 4 and USA EPA regulations get stronger, more restrictive, EFI is only way to go except elec. bikes.

To achieve this, EFI systems will have to be very simple, reliable and cheap ... or NO ONE will buy them.

Look at a KTM 690 EFI system (I have) from 5 years ago, look at components, integration, packaging. Now compare to a brand NEW 2015 Yamaha YZ450F ... I think you will see a few changes. I'm no expert here ... But I saw the new system ... it's just seems a lot smaller, simpler than earlier systems from KTM, BMW that i've seen.

A big R1200 GS is a nightmare of complexity. But of course one is looking at many interwoven systems all at once (EFI, TC, ABS, Power Modes, Elec. Suspension and more!)

True, the Yamaha is a pure RACE BIKE ... but perhaps components can be modified to adapt some of the new tech from Keihin or Bosch to work on Road Legal engines??