Honda 1982 GL1100 INTERSTATE Owner's Manual page 23

Coolant Temperature Gauge
When the needle exceeds the blue mark;,
the engine is warm enough to ride. Normal
operating temperature is within the white
band. If the needle enters the red zone,
stop the engine and check the reserve tank
coolant level. Read pages 36-37 and
do not drive the motorcycle until the
problem has been corrected.
CAUTION:
Exceeding maximum running temperature
may cause serious engine damage.
Fuel Gauge
The fuel gauge shows the approximate
fuel supply available. At F(full) there is
20 liters (5.3 US gal), including the
reserve supply. When the gauge needle
first points to RES there is about 4.5 liters
(1.2 US gal) left in the tank. Refill the
tank as soon as possible. If the main
fuel supply runs out, the last 4 liters
(1.1 US gal) can be used by turning the
fuel valve to RES.
19