You could just slot them now, that way you always know where they are set to factory. I dont know how you would turn them without a special tool or slotting them. We tried. You can leave it in and use it to choke the engine, one guy even hooked it up to a servo to do this. Or remove it. Pull out the flat metal choke plate, slide the blue arm out. THEN, and this is very important, THEN make sure you remove the spring and ballbearing that is in the choke arm slot. Dont miss this little item. It was the cause of a sudden and irreversable engine stopage. Sorry again mike.