Originally Posted by Simon / APP Team
.Locate the orifice at the top of the gas valve and turn it CCW 1/2 turn.
Also, is the top burners are OK? If not - you may have a bad pressure regulator.
See previous post. I started with your advice, and I was able to get it to work by turning the orifice about two turns CCW. My question is: why would this work? How does increasing the distance between the orifice and the inner nozzle give better gas burning?