I was given a Poulan 3800 Timber Master by a neighbor. I can't find the manual online. It's an old saw but seems to be in good condition. It's a 3.2 CI, with a 20 inch cut. It started easily, but smokes a bit. I suspect too much oil in the gas. I've seen both 40:1 and 32:1 gas:oil ratios in "similar" saws. I've entered the model # in the Sears system and it finds nothing. What size file to sharpen the chain? Anyhow I need the manual..