The high pressure inside the brake line can cause fluid to leak [A] or the hose to burst if the line is not properly maintained.
Bend and twist the rubber hose while examining it.
Torque - Brake Hose Banjo Bolts: 25 N·m (2.5 kgf·m, 18 ft·lb)

If any brake hose routing is incorrect, run the brake hose according to Cable, Wire, and Hose Routing section in the Appendix chapter.
Brake Fluid Leak (Brake Hose and Pipe) Inspection
Brake Fluid Level InspectionThermostat Removal
Remove:
Fuel Tank (see Fuel Tank Removal in the Fuel System
(DFI) chapter)
Air Cleaner Housing (see Air Cleaner Housing Removal
in the Fuel System (DFI) chapter)
Throttle Body Assy (see Throttle Body Assy Removal in
the Fuel System (DFI) chapter)
Throttle Body Assy Holder Clamp [A]
...
Leather, Vinyl, and Rubber
If your motorcycle has leather accessories,
special care must be taken.
Use a leather cleaner/treatment to
clean and care for leather accessories.
Washing leather parts with detergent
and water will damage them, shortening
their life.
Vinyl parts should be washed with the
rest of themo ...
Stick Coil Primary Peak Voltage Inspection
NOTE
Be sure the battery is fully charged.
Remove the stick coils (see Stick Coil Removal).
Do not remove the spark plugs.
Connect the ECU to the harness.
Measure the primary peak voltage as follows.
Install the new spark plug [A] into each stick coil [B], and
ground them onto ...