Honda CB HORNET 160R 2015, Shop Manual

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16-2
IGNITION SYSTEM
Unusual condition Probable cause (check in numerical order)
Ignition coil
primary voltage
Low peak voltage 1.
The multimeter impedance is too low; below 10 MΩ/DCV.
2. Cranking speed is too slow.
3. The sampling time of the tester and measured pulse were not
synchronized. (System is normal if measured voltage is over the standard
voltage at least once.)
4. Poorly connected connectors or an open circuit in the ignition system.
5. Faulty ignition coil.
6. Faulty capacitive discharge ignition (CDI) (in case when No.1-5 are
normal).
No peak voltage 1. Incorrect peak voltage adapter connections.
2. Battery is undercharged.
3. Faulty ignition switch.
4. Loose or poorly connected CDI connectors.
5. Open circuit or poor connection in the Red/Black wire of the CDI.
6. Open circuit or poor connection in the green wire of the CDI.
7. Faulty peak voltage adapter.
8. Faulty ignition pulse generator. (Measure the peak voltage.)
9. Faulty CDI (in case when above No.1 – 8 are normal).
Peak voltage is normal.
but no spark jumps at the plug. 1. Faulty spark plug or leaking ignition coil but no spark jumps at the plug
secondary current.
2. Faulty ignition coil.
Ignition pulse
generator
Low peak voltage 1.
The multimeter impedance is too low; generator below 10 MΩ/DCV.
2. Cranking speed is too slow.
3. The sampling time of the tester and measured pulse were not
synchronized. (System is normal if measured voltage is over the standard
voltage at least once.)
4. Faulty ignition pulse generator (in case when above No.1 – 3 are
normal).
No peak voltage 1. Faulty peak voltage adapter.
2. Faulty ignition pulse generator.
TROUBLESHOOTING
• Inspect the following before diagnosing the system.
– Faulty spark plug
– Loose spark plug cap or spark plug wire connections
– Water got into the spark plug cap (Leaking the ignition coil secondary voltage)
No spark at spark plug