I need to lower my idle RPM on my OS 46AX. How would I go about that? Would I be leaning the low needle or richening? The idle is currently around the high 2ks(or so) rpms and very reliable(doesnt quit). Two problems....One- As I start to taxi....once i bring the stick all the way down...the engine continues to pull and running around the runway...and Two- THe engine doesnt seem to be 100% consistent on its idle rpm. Lets say you rev the stick 5 times....2 of those times the idle will come down low....the other 3 it will stay a bit higher. What am i missing here?