Can you even find a 12 year old 600 that still runs? Oh, crashed bike donor? Yeah, lots of those around. If you have several thousand dollars to invest in extensive frame modifications, intake, exhaust, wiring etc., it might be doable.QUESTION, Will a 2009 Kawasaki ninja ZX6R engine fit on a 2009 Kawasaki ninja 650R, without having to modify???
Just wondering: something special about that magic 2009 model year or just going with the OP's numbers?