the two stroke needs a whole new engine design to put the oil specifically where it needs to be, rather than just dissolving it in the gas. That's the whole issue. The outboard boat motors have solved it. When it trickles down to motocross bikes, I think that is when you are going to see a two stroke revolution. But right now, they are just dressed up versions of 25 year old technology and thats the problem. There is nothing inherently different about the 2013 250SX than say the 87 YZ125. its a carbed, liquid cooled, pre-mixed 250 with a powervalve. The ports are better, it makes more power, but essentially there are no core design differences. One is just a much better version of the other.
Wait until they have an autolube type system injecting it directly into the bearings and a little onto the skirt, and the only thing that goes into the tank is fuel. Let them play with the fueling and ignition mapping to smooth the power out even further, and I think then you will see a revolution, and a very very quick one. But until then, I just don't see a bike like that getting it's foot in the door with the current pro rules.
