Starter Motor Turns Slowly; Starter Motor Turns, But Engine Does Not Turn; Starter Relay Switch “Clicks,” But Engine Does Not Turn Over - Honda GL1800 Service Manual

STARTER/REVERSE SYSTEM
10. Starter Relay Switch B Relay Coil Control Line Continuity Inspection
Check the relay coil ground line of starter relay switch B (page 19-25).
Is there continuity?
NO
YES
11. Starter Relay Switch B Relay Coil Voltage Line Inspection
Check the relay coil input voltage line of starter relay switch B (page 19-25).
Is battery voltage present only when the starter/reverse switch is pushed in?
NO
YES
12. Starter Relay Switch B Operation Inspection
Check the operation of starter relay switch B (page 19-25).
Is there continuity between the cable terminals while the battery is connected, and no continuity
when the battery is disconnected?
NO
YES

Starter motor turns slowly

• Weak battery
• Poorly connected battery cable
• Poorly connected starter motor cable
• Faulty starter motor

Starter motor turns, but engine does not turn

• Faulty starter clutch (section 10)
Starter relay switch "clicks," but engine does not turn over
• Crankshaft does not turn due to engine problem
• Faulty starter drive or driven gear
• Faulty starter idle gear
19-8
– • Open circuit in the Green/red wire between starter relay switch B and reverse regulator
assembly.
• Open circuit in the Green/orange wire between the reverse regulator assembly and
reverse switch.
• Loose or poor contact of the reverse regulator assembly connector.
• Faulty reverse regulator assembly (diode) (page 19-28).
• Faulty reverse switch (page 19-27).
– GO TO STEP 11.
– • Open circuit in the Red wire between starter relay switch A and the fuse box (No. 12
reverse fuse B)
• Open circuit in the Yellow/red wire between starter relay switch B and the fuse box (No.
12 reverse fuse B).
• Faulty starter relay switch A.
– GO TO STEP 12.
– Faulty starter relay switch B.
– Loose or poor contact of the starter relay switch B 2P white connector.