No hose on a K2 either. 27k on my sweet-running Vee, showing 2 bars of temp 98% of the time.
After a 500 mile day on the Interstate, at 75-80 mph, I spotted a small, greenish drop at that
hole last May. 35° start temp during a ride that maybe warmed up to 50°.
Got a bit worried.
It hasn't happened again since the weather warmed up. Some dirt does collect around the
hole...sticky ethylene glycol weep? But the level in the overflow container hasn't measurably
dropped in the 5000 miles since my valve adjustment and coolant changeout in June. No coolant
in the oil at the 4000mile change either. I was looking real careful.
I figure it's just in the nature of the bike.
2002 DL1000 - 70K of joy, so far...
1978 GS1000 - One owner, still putt'n