I've only checked the idle once or twice, and it was around 2,000 rpm I believe. It's kind of touchy, I hit a spot where one beap on the trim lever really changes the idle speed. I've gone into the TX and reduced the movement on the trim lever which helped some, but I'm always just a bit too high, or two low to where it sounds like it wants to die. This is only on landing. Seems like while flying, the air keeps the prop free wheeling enough to where it won't die. I'm running a Mejzlik 22 x 10 and have 6 gal. through it.