This isnt true with the DZ series. I was a two stroke guy for years. I switched the DZ last year and couldnt be happier. I'm running the same motor I flew at the beginning of last year. Well over 700 flights, and have just adjusted the valves. The motor still starts and runs, just like it did a year ago. This thing is every bit as easy to deal with as my OS 1.40RX was, if not even better. I have zero complaints with my DZ's since I got them. I know several other guys that have had exactly the same experience I have with this motor...Mike Hester being one of them. These are great motors.

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