Need to know how to set fuel /air mixture screws.

Eddie, November 2011

AB..............Well mine still won't start. Bought in a Car Boot Sale for £10. Compress seems OK Spark OK Carb with new Diaf and gaskets.
Very frustrating

jabel, February 2015

The instructions with my McCulloch chainsaw tell me to turn both Hi and Lo adjustments fully home (clockwise) but do not force. Then open both 1 full turn. It should then start. Minor adjustments can then be made usually by turning Hi very slightly anti-clockwise. I used mine today - and that's how I got it to work efficiently. It's 20 years old!

Stan Jones, December 2011