SuperJ. . if you dislike these motors so much. . why are you even here? It's rather obvious you are bashing for the sake of bashing right now. How bout , since you are an "Engineer", explaining the difficulty of building an engine like the BME or Da or 3W in the first place? It would be a LOT more productive than slamming them because they are not from Yamaha. . . . . then, put some of that engineering expertise to good use and IMPROVE them, if you can. somehow I think you, or just about anyone else, would be hard pressed to do so.