real shame, but to be honest mercury and brp have a better 2 stroke anyhow, at least for the bigger engines. i don't know much about the smaller yamaha 2 strokes. its just another good thing the emissions natzis are killing off. the 2 stroke dirt bike is about to die as well, this is the last production year for the yz125 and 250 and yamaha was the last to keep the 2 smokes around in the bikes. in my opinion the 2 strokes are betterr design all around. common sense would tell you that the engine with less moving parts and less maintenance, as well as a superior power to weight/displacement ratio would be the better unit, not to mention they are way cheaper. until i see a 40 year old 4 stroke that the valve train hasn't ate itself yet, i don't believe for one second 4 strokes are more reliable. not to mention 4 stroke outboards don't even have hydraulic lifters, so valve adjustment is much more important then in your car, yet no one ever does it.