Small Engines (Lawn Mowers, etc.): air flow screws, digital tachometer, engine failure

Question
hi i have a poulpan 2000 33cm what is the correct setting for the high and low air flow screws

Answer
Frank:

You can start by turning them both out 1 1/2 turns.  Fine tune your idle first then your High Speed.  you will need to find out what the top no load speed is for you saw and adjust the high speed with a digital tachometer.

WARNING.... setting the saw faster then top RPM will cause engine failure.