MdrnMtnMan
New Member
I just picked up a used 394xp, & it has the walbro wj70 carb on it . does the non epa model run stronger/faster? planning on using the saw with an alaskan mkIII. want to hop up the saw for best performance & longjevity. with a 2nd port on the muffler & the larger hd air filter will i need to make changes to the carb ( jets /needles) ? what is the difference between the wj70epa, wj71 & wj39 ? thanks, Dave
