dont know if this is old news but i just read this.
But now word comes out of Italy that the two-stroke streetbike might be experiencing its own resurrection, as these concept sketches of a Yamaha RD350 illustrate. As before, the challenge is to create a two-cycle engine that is able to pass emissions regulations, but perhaps the recent innovations in two-stroke outboard boat motor technology can be somehow adapted to a street-legal motorcycle engine. The challenge Bimota and others faced in this regard has been getting the air/fuel mixture in and out efficiently at the higher revs required of a bike engine. It’s possible that new fuel-injection technology and effective catalyzers might be able to solve this longstanding conundrum.
source: http://www.motorcycle.com/manufacturer/yamaha/2009-yamaha-rd350-concept-82286.html
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