I always forget to move the octane selector back to where it was when I started. If you can't remember dial in about 3-4 clicks (A) advanced, thats 2 degrees each mark. If you get a little spark knock when you drive it take a couple of degrees out of the octane setting. If no knock add a couple til it does then back off. These engines need advance at idle and just off idle, they will run better and cooler. Hopes this helps.

"Drugs are money, money is power, power is security." - Kent Heiner
Nedrow population 2212
Carbon footprint family of 2/11 tonnes of CO2/yr