Put the model back into the air for another flight today. No doubt I have some tuning/diagnosis to do. While at WOT I noticed an occasional <forgive the 4 stroke automotive lingo> missfire. Had a smoke stream behind the model at times, but with the gray sky it was hard to see clearly what was coming out of the pipe. Running the motor up static in the pits for sure showed a rich condition at WOT.

I'm wondering just how rich off peak RPMs I should be setting this motor? 500 RPM????

Was having too much fun with a electric Pylon Plane to put the Kougar back up.

Tommy D