I got a 2014 rocket 3 600 miles the other day. I changed the coolant and flushed with distilled water once, and some coolant as well on the second flush.
I drained the coolant at the water pump hose, took the bleed screw out and filled with coolant until it poured out bleed screw. I then topped it off at he radiator fill cap (not the overflow tank).
I turned the bike on and let it run until the radiator fan came on, then shut it off. I did this process twice. I'm now realizing I never topped off the radiator overflow tank to between the min and max fill line, so it was completely empty. If you open the radiator fill cap, you can see coolant at the top.
So my question is... did I hurt the bike by letting it idle until the fan kicked on twice with no coolant in the overflow tank whatsoever ??
Thanks guys!