I printed with a cut strand of PVA for support material. The PVA ran out during the print. BAD IDEA! I wound up with a length of (somewhat burned) PVA stuck inside the plastic tube that leads to the printhead.

Using a candle for heat I got most of that out. But there's just a little residue left. I've got one of those cleaning kits from ebay with the little fine wire- and that wire will not go through the .4mm hole by any persuasion! Nor will any light.

Now what? I'm soaking the head in acetone overnight. Other ideas?