SilverKing
ArboristSite Guru
bought an old 041 today at a flea market.Saw runs great other than a few missing housing bolts.Anyhow,I checked it out on acres and it showed a recommended 20:1 fuel mix ratio.Mine is the old style non AV model.The newer 041 AV shows a 40:1 mix.Was this perhaps a mishap ,or did the older Stihls from the early 70s call for richer mix .I mix 16:1 for my old XL-12s,so I dont mind carrying around the different mixes anyhow