Replace it if necessary.

Inner Tube Inspection
Spring Tension InspectionSpecial Tools and Sealant
Hand Tester:
57001-1394
Flywheel Puller Assembly, M38 × 1.5/M35 × 1.5:
57001-1405
Peak Voltage Adapter:
57001-1415
Lead Wire - Peak Voltage Adapter:
57001-1449
Key Registration Unit:
57001-1582
Grip:
57001-1591
Flywheel & Pulley Holder:
57001-1605
Rotor Holder:
...
Key Registration
Case 1: When the ignition key has been lost or additional
spare ignition key is required.
Prepare a new spare ignition key.
Cut the key in accordance with the shape of the current
ignition key.
Remove the rear seat (see Rear Seat Removal in the
Frame chapter).
Remove the immobilizer/K ...
Water Pump Housing Disassembly
NOTICE
Do not damage the hole wall of the water pump
housing.
Insert a bar [A] into the pump housing [B], and hammer
evenly around the circumference of the mechanical seal
bottom [C].
Take the oil seal [A] out of the housing [B] with a hook [C].
...