stihl 440
Addicted to ArboristSite
I've been running this new Husky 372xp x-torq for 1 1/2-2 months now at work and it ran flawlessly until a couple weeks ago it developed a problem shutting off when in the cut or out of the cut at WOT. But it only does it when the saw gets up to temp..i thaught it might be too lean but it de-tuned it clear down to 12,500rpm and it still does it...it was previously running 13,400rpm. No matter how the high,low or idle screws are set it still does it. And when it shuts off its not running out of fuel its just like you hit the kill switch and you cant bubble the throttle to get it back. I had it to the shop once and we put a new fuel filter, stop switch, and tank vent hose on it since i thaught since it only did it once the saw was hot, i thaught it might be vapor locking. I also thaught it might have had water in the tank so i dumped the tank and put brand new fresh mix in it and we still have the problem. But after all that still no go...it sounds like an ignition problem, or maybe something else that im not seeing..but after it shuts off it restarts in one or two pulls...it also is a freaquent problem..sometimes every minute..which is no good when your half way through a tree getting ready to turn it loose. Any of you guys know what this could be?