I had a Poulan Pro 16" saw for years and it started just fine. I always keot the carb clean by adding about 1 oz of Berryman per gallon of gas, just as I do with all of my OPE.
Now, the gas cap was another story! That **** thing stuck tight whenever the saw was running and I had to let it cool down just to refuel! I wasn't sad when I got rid of it.