Pixelator, It's really not that hard once you know what to look for. I learned the same information that Montague perfectly explained. I'm very new to this hobby and it didn't take me any trying to figure out what was explained after you get the plane started. What I did was run the engine full throttle and backed out the needle until it started to sputter like it was about to die. Start from there and slowly turn the needle in and you will hear all the stages that was explained. I learned a similar technique described by Montague from the site below.

http://www.indiarc.com/tune.htm