My 041 owners manual calls for H: 3/4-1 and L:1-11/4 for, I believe a Walbro carb. I just installed a new Tilloston carb tonight and it runs great at L:1. I have not adjusted the high yet because I do not have a bar/chain for it, yet. Saw hasn't run in 15 years and was given to me as a parts...