Replace it if necessary.

Inner Tube Inspection
Spring Tension InspectionDFI System Wiring Diagram
Part Names
1. Air Intake Solenoid Valve (Other than US, CA and CAL Models)
2. Front Wheel Rotation Sensor
3. Engine Stop Switch
4. Starter Button
5. Air Switching Valve
6. Stick Coil #1, #2, #3, #4
7. Spark Plugs
8. Intake Air Temperature Sensor
9. Crankshaft Sensor
10. Secondary Fuel ...
Engine Installation
Apply molybdenum disulfide grease to the threads of the
adjusting collars [A].
Install the adjusting collars to crankcase backside until
end of the threads.
Install the adjusting collar [A] to the frame until end of the
threads.
Replace the engine mounting nuts with ne ...
Commutator Cleaning and Inspection
Clean the metallic debris off the between commutator
segments [A].
NOTE
Do not use emery or sand paper on the commutator.
Check the commutator for damage or abnormal wear.
Replace the starter motor with a new one if there is any
damage or wear.
Visually inspect the commutato ...