do you turn the screw to the right or the left to richen the mixture?

 

Clockwise to richen, couter-clockwise to lean.

 

i just can't seem to get mine adjusted right after removing my injection. i was running a 172 now im using a 175 it was a little lean so i adjusted it out some and it got way too rich now i cant find the right spot. Do you know how many turns out the screw comes from hpd? thanks for replying so fast on the last one

 

I think HPD sends them out at 1 and a 1/2 turns from bottom.

 

keep in minsd that the pwk 39 is a FUEL screw so a lot more sensitive than a air screw,it is effective 1/2 turn out to 2 turn out only,
it is counter clockwise to lean,if you got a rich pilot jet you'll
almost run the fuel screw 1 1/2 turn out.

 

thanks a lot i got it dialed in now seems to be running good, plug looks good also