My dad owns a a husky 346 XP and it has similar problems. It's not that it gets clogged with dust, but just doesn't oil the chain for sh*t when cutting larger timber (20" or more in dia). Good saw for limbing (high speed.. it screams) but not worth a crap for real sawing. He's sent it back so many times that he's now on the 3rd saw (at least they are good in this regard) but not where it counts. Maybe switzerland has a stricter EPA for chain oiling, I don't know. He went back to his old 026 pro which oils the chain great on a twenty inch bar. I don't know about the other husky saws but stay away from the 365 it's a lemon. Hes 62 and been running saws for most of his life to feed my grandfathers lumber mill, even after he got his mechanical engineering degree during the weekends, so it's not operator error. He's now investigating boring out the pump orifice now that the warrenty is out.