1979 TS250 carb

[Succubus]

I am just finishing up a resurrection of a 1979 Suzuki TS250. I tore down the carb and cleaned it, including pulling the air screw. My manual tells me the air screw isn't supposed to be pulled as it was set to unscrew only so far because of emission concerns. It also doesn't tell me how many turns I should unscrew the air screw as the starting point for adjusting the carb since it isn't supposed to come out, Any suggestions for a good starting point?

Thanks.

 

[TimberPig]

1.5-2 turns? Just a guess, most carbs are somewhere in that range to start.