If the fuel level indicator light (1) does not function properly, check the fuel level gauge and its lead wire/ coupler.
If the fuel level gauge and its lead wire/coupler are functioning properly, replace the combination meter with a new one.

Engine coolant temperature indicator light inspection
Fuel level gauge inspectionSpecial tools and equipment
Recommended service material
Note
required service material is also described in the following.
“Throttle body components” “engine bottom side assembly”
Special tool
...
Fuel line inspection
Inspect fuel line
every 6 000 km (4 000 miles, 12 months)
Inspect the fuel line in the following procedures:
lift and support the fuel tank. Refer to “fuel tank
removal and installation” in section 1g (page 1g-
9).
Inspect the fuel feed hose (1) for damage and fuel
leakage. ...
Inspection after cleaning
For extended life of your motorcycle,
lubricate according to "general
lubrication" section .
Warning
Wet brakes can cause poor
braking performance and may
lead to an accident.
Avoid a possible accident by
expecting longer stopping distances
after washing your
...