ORIGINAL: RocketRob
I agree with you. I have not run this one while in my care. I have a runner with a used exhaust and another runner which is rc w/o exhaust. It is actually fairly strong in my estimation spinning a 7x6 prop between 12,600 and 12,800 and feels quite light.
The engine is great powerwise. Not the normal run of the mill power anyway but a lot more!. BTW: Not a reed valve, but a disk valve.
200 bucks won't make you rich. A nice engine in a nice plane certainly will! Treated well, this engine will last forever and a day.
Use modern racing two stroke all synthetic oil, 50 grade, instead of Castor (like Mobil1, Elf or Putoline MHX), and the engine will stay clean.