hi, im using novarossi .12 with slide carb.
when i start those up for the first time, the wheels want to get stand.
after a few minutes. the wheels get run in idle position.
when i turn down the idle screw till the lowest position before the engine get off, the wheels keep running.
anyone know how to set it up?
i already see the tutorial engine tunning on youtube, and it must turn down the idle screw, but nothing happened even on the low rpm.

thanks for your help guys.

Deddy