I am trying to print ABS on top of PVA but the first couple of layers seem to not stick well to the PVA and look almost burned, can anyone look at the images in the link and have any suggestions on how to fix this problem? I am printing the PVA at 190c and the ABS at 220c. Thanks

http://imgur.com/FtKdJiW,0YGJ3OT,goEmcrM