+1!........overflow tank level is irrelavent at this point, specially if the overflow hose has an unseen split near the top where it attaches to fill neck. Coolant can 'puke' out into tank, but not get drawn back in if there's a split in hose. Seriously, if coolant level in system itself is low, gauge and fan WILL still be a bit erratic. If overflow hose is good with no splits, it will eventually get pulled back in system...maybe. Not my choice though. Cooling system on motor actually full and staying at a more constant temperature and NEVER rising above one o'clock, no matter outside conditions will result in improved smoothness, fuel mileage back up in the low 50's on LD rides. Consistantly more even, non fluxuating cyl. temps= a 'happy' motor.Steve, it only takes a few minutes to check the radiator. Do you have tupperwarephobia? . You did knowingly buy a fully faired motorcycle, after all. OK... OK... I'm teasing a bit, but I personally couldn't ride another mile without knowing my whole cooling system was right.
Just say'n...
John