This was AFTER flushing out the old coolant(it was gross) with water that ran clear.  I did a 50/50 Vinegar/Distilled water "Soak" aka ran it for about 2 hours then left it to soak for about a 2 days and this was the result.  

https://servimg.com/view/20249263/1

I will be interested to know if you deem the radiator to be more efficient after this flush.

For a little context.  Bought the bike a few weeks ago and the engine started overheating after 15 minutes and was also leaking coolant.  So i figured probably needed new seal and coolant.  Changed out the coolant and it was utterly disgusting.  The bike no longer overheats, even with low coolant levels due to the leak.  I'm waiting on parts now to replace the seal, impeller, and impeller rod to address the leaking.  The overheating could possibly have been addressed just from a coolant change, but i did the vinegar flush as well since the fluids were so gross.  Hard to tell how much more efficient the radiator performs since i cant compare just a fluid change vs the vinegar flush

If you haven't done it already, you might want to do an exterior soak with vinegar to get the roasted bugs out of the fins.  That will go a long way toward cooling off the engine as well.  I got enough protein out of my K100RS radiator fins to feed a third world family for a month.

Thank you, I'll be here until Tuesday, try the veal.