goalie,
Lot's of places still advertizing Yugo's in Shotgun News.....
I bought mine from AIM 2-1/2 years ago. Brand spanking new. Looked exactly like the one in VG's photo when it came from the box.
Get yourself a small bucket or pan, put in a quart of Mineral Spirits (cheap), stand the rifles butt in the bucket and go to work with a small paint brush. Get all the exterior grease off then dis-assemble the rifle, drop all the parts in the bucket, and brush all gook out of the internals.
Once the majority is off, dump out the bucket, get fresh Mineral Spirits and do a final rinse-clean. Place all parts on newspapers to dry.
After dry, Re-lube with your chosen rifle oil-preservative and re-assemble.
I've done dozens of rifles this way. Seems to be the fastest method I've found to clean up a "grease ball".
Swampy