i ajusted the screw all the way in it stop before i run out of threads i have about 1/2"+ left is this normal no run away not even close yes the threards are clean because the nut will go farther up the screw just wondering ?

 

huh?

 

as long as the idle comes back down and doesnt flutter or drift down you are fine.

 

Like jimmy said you can turn it up until the RPMs start to hang, then I would back it off 1/4 turn min.

 

i have my in as far as it will go it still has 1/2"+ the thread are clean because to nut will go up and down it just bottoms out should it go in farther?not anywhere near runaway?