This is not what the OS webpage says to do, and also not what is recommended by the OS rep on RCU....
ORIGINAL: Eagle Al
Follow the OS directions:
1. One minute at full throttles with needle valve 1.5 to 2 turns from seated position.
2. 2-cycle for 10 seconds
3. 4-cycle for 10 seconds
4. Continue alternating 2 & 3 until you empty the tank.
5. Start flying on 2-cycle setting.
6. After each flight, lean engine a couple of clicks.
7. The final position is the needle valve set rich from maximum RPM. This is called the optimum setting and is around 15-30 degrees from maximum RPM (leanest setting).
Your engine will now last forever! And finally, how can the OS instructions be wrong? What are you people smoking? No wonder human progress has been so slow!
Ciao,
Eagle Al[&o]