Bought a Poulan P3816 Chainsaw, reconditioned. At first I could not get the thing started. Finally, after trying over and over again, it did start only to die immediately. I worked om it for a while before I got it where it would run on full throttle. I then went to adjusting the high and low screws, plus the idle adjust. Turns out it was not set to idle at all. Plus it would not crank easy and ran rough and slow on full throttle, I pulled the spark plug and it was full of carbon like dirt. Cleaned it but also went and bought a new one and then I was able to get the idle, plus the low and high adjustments pretty good. She runs well now and accelerates great. Only thing now it's putting out more bar oil than needed but that's certainly better that too little.