I don't think the foam thing is for filtering the air but rather to catch the fuel spray .
Perhaps closed cell is not really what I should have said but it has to be some material that won't flake off and get sucked into the engine . I don't think a synthetic sponge would be the best choice .
Well I got my skinny trees cut up .Not a big deal just some clean up stuff I do every couple of years .
Any who the 020T lists two air filters .One is evidently some type paper and the other is a felt material . In addition as B pointed out there is also a foam insert that sits in a little...
I'm just about ready to trot off to the woods to cut up some pecker poles .I'll take a peek inside my 200 to see if there might be some gizmo like a piece of sponge stuck in the filter to attempt to prevent this problem .
I've never experienced this problem so I really never paid attention to...
It also has a lot to do with how the filter is made . If it was a wire mesh filter it wouldn't do a thing blowing fuel . Some of the celulous fiber filters would just plug up tight as a bulls butt at fly time . After enough of the surface of the filter got wet it would be about like running with...
By the very nature and design of the engine you will have a little bit of back blow.It can't be helped . Lean it up a RCH and see what that does .
I suppose you could have some muffler restrictions also .If it can't get out then it can't draw down as hard on the transfers .Which means it can't...
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