Honda CB HORNET 160R 2015 Shop Manual page 322

ELECTRIC STARTER SYSTEM
6. Starter Motor Inspection
Connect the starter motor terminal to the battery positive terminal directly.
(A large amount of current flows, so do not use a thin wire.)
Does the starter motor turn?
– GO TO STEP 9.
YES
– GO TO STEP 7.
NO
7. Relay Coil Ground Line Inspection
Check the ground line of the starter relay switch (page 18-3).
Is the ground line normal?
– GO TO STEP 8.
YES
– • Faulty neutral switch (page 17-12)
NO
• Faulty neutral diode (page 18-4)
• Faulty clutch switch (page 18-5)
• Loose or poor contact of the related connector terminal.
• Open circuit in the wire harness.
8. Relay Coil Power Input Line Inspection
Check the power input line of the starter relay switch (page 18-3).
Is the power input line normal?
– GO TO STEP 9.
YES
– • Faulty ignition switch (page 17-10).
NO
• Faulty starter switch (page 18-3).
• Loose or poor contact of the related connector terminal.
• Open circuit in the wire harness.
9. Starter Relay Switch Inspection
Check the function of the starter relay switch (page 18-3).
Does the starter relay switch function properly ?
– Faulty starter relay switch.
YES
– Loose or poor contact of the starter relay switch connector.
NO
Starter motor turns engine slowly
• Low battery voltage
• Poorly connected battery cable
• Poorly connected starter motor cable
• Faulty starter clutch
• Poorly connected ground cable terminal
Starter motor turns, but engine does not turn
• Starter motor is running backwards
• – Case assembled improperly
– Terminals connected improperly
• Faulty starter clutch
• Damaged or faulty starter gear train
Starter relay switch clicks, but engine does not turn over
• Crankshaft does not turn due to engine problems
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