Well now I think reall it comes down to more than just saying things are black and white. I've seen old saws with basically no air filter look perfect inside, on the other hand I have in fact seen modern saws not handle dust and fail because of it.
When it comes to the 500i, is dust getting by the little foam seal where the cover attaches? That's the only place I can see dust getting passed, and Stihl should have just used a threaded stud rubber seal and a knob to hold the cover on.
I've been cutting dead Ash much of it has turned to mush, so when you cut it, you create a cloud of dust, dry ash is dusty even when solid, and yes my ****ing chain is sharp.
500i after two tanks of fuel cutting this stuff. Not bad, not great, nothing on or around the butterfly.
When it comes to the 500i, is dust getting by the little foam seal where the cover attaches? That's the only place I can see dust getting passed, and Stihl should have just used a threaded stud rubber seal and a knob to hold the cover on.
I've been cutting dead Ash much of it has turned to mush, so when you cut it, you create a cloud of dust, dry ash is dusty even when solid, and yes my ****ing chain is sharp.
500i after two tanks of fuel cutting this stuff. Not bad, not great, nothing on or around the butterfly.