Replace it if necessary.

Inner Tube Inspection
Spring Tension InspectionThermostat Inspection
Remove the thermostat (see Thermostat Removal).
Inspect the thermostat valve [A] at room temperature.
If the valve is open, replace the thermostat with a new
one.
To check valve opening temperature, suspend the thermostat
[A] in a container of water and raise the temperature
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Parts Location
1. Timing Rotor
2. Crankshaft Sensor
3. Horn
4. Oil Pressure Switch
5. Rear Brake Light Switch
6. Oxygen Sensor (Equipped Models)
7. Alternator
8. Stator Coil
9. Gear Position Switch
10. Sidestand Switch
11. Immobilizer Amplifier (Equipped Models)
12. Radiator Fan Motor
1 ...
Handlebar Removal
Remove:
Steering Damper (see Steering Damper Removal)
Clutch Lever Clamp Bolts [A]
Clutch Lever Assembly [B]
Left Switch Housing [C]
Handlebar Weight [D]
Left Handlebar Grip [E]
Remove:
Front Master Cylinder [A] (see Front Master Cylinder Removal
in the Brakes chapter)
...