now the the engine is running smooth now n so does the ildle . As i check the high end needle it was less than 1 1/2 turns , ........hemm........ is that normal ?

as i try open out 1 1/2 the engine not running smooth n start knocking a little bit again at full thorttle ........ by turn in 4 click , it run fine again .. !! ??

Is that normal ..........?