I can't tell from the angle of the pics. But is that fuel line touching any thing?
I'm thinking of possible contact with a bolt head under the strap or the choke link.
It's probably the photo angle again, but it even looks a bit close to the end of the choke shaft.
When it's in place does the filter touch the hose and push it against anything?
When I don't know all of the room and shaping of the area I'm looking at in a photo.
This is the sort thing that a camera angle can sometimes leave me wondering what I'm really seeing.