Hi Don,

Here is my way;

* Set the needle at factory settings.
* set throttle stick at high idle position (never at full, thats dangerous in my opinion)
* Switch your glow on
* Start engine
* wait a half to a minute to let the engine come on working temperature
* remove glow switch

Now listening to your engine at the moment you switch off the glow.

Engine dies, you need to adjust the idle needle or the air screw (depends on engine) See manual.
Engine lost some rev's, also need to adjust the idle needle
Engine continues to run without rev's change, idle needle setting is correct

* Then go to full throttle and adjust the high end needle until it is correct.

Happy flying. [8D]

My experience is that when you has setup the needle settings correct (take your time, and be critical to yourself), you almost never have to correct it. The last time I did it in my Waco YMF and Saito 91 is approx. 2 years ago! The only thing I do is start and fly.

Teus