From the '03-05 Bin O' Facts (Generation I)':
Fahrenheit: 1 bar 104-140, 2 bars 140-176, 3 bars 176-212, 4 bars 212-230, 5 bars 230-248, and 6 bars 248 and up.
(Gen I's have 6 bars)
There are 10 segments on the coolant temperature bar graph/display for Gen II FJR's.