Echo carburetors adjustment

[goosemasterkl]

I've got an Echo PB-250 leaf blower with a Zama RB-K106 carb. and an Echo SRM 266 with a Zama RB-K112 carb. My question is how many turns is that H jet supposed to be set at? It's the one under the primer bulb between the 2 fuel lines. Any replies would be appreciated. Thanks

 

[Boobala]

My usual starting point is 1&1/4 to 1&1/2 off " seat " ..........Boobala