As part of the regular service, I find myself blowing out the outer air filter (from inside to out) in dusty cond. Std. procedure. But pay attention when fastening the spring clips (3) when reinstalling the air filter housing....the 3rd clip is hidden and can feel fastened when it really isn't.....move the housing laterally when reinstalling it (with the others unfastened) to ensure it's positively engaged. I've caught myself a few times. Know it's pedantic, but important...kind of a flimsy setup on such an exquisite machine...Also, when doing the 1st fluid change, check the ft axle/differential level a few times after the change (at axle & differentials), takes time for things to settle into the housings (also a wierd set up) But I love the machine! big bubba