SawJunkie
ArboristSite Member
Finally got to cut some today after work with my 390 that I did a muff mod on. It's running right around 14,200 and the improvement over stock is pretty substantial I think. It seems to be cutting really well where it's at so think I'll leave it. Also took the 440 along to finish noodling up some big rounds so I could move them. It has the factory DP muffler cover. It's just getting broke in good and I probably have somewhere around 10 tanks of fuel through her. Probably a few more than that. Anyway, I put the tach on just to see what she was turning. I was pretty surprised when I saw 16,000 reading on the tach!! I am guessing she loosened up a bit since I last adjusted the carb. I am thinking I better turn the saw down to about 14,500 or so to be safe. Cut like crazy, but I don't want to seize it.