turning screws
 

i was wondering about the two screws in the back of the pump i now you turn one in and one out so much but wich one goes in and wich one goes out and how much in and how much out thanks

bump

afc or pump? two screws hold a cover over the smoke screw on the afc if thats wat u mean

There's just one on the back of the afc once you get the little cover off, what it does is it puts more or less pressure on the spring giving you more or less pre boost fuel

the two screws in the back of the pump not the afc there below that on the pump its self