Section 03 TROUBLESHOOTING
Subsection 03 (ELECTRICAL SYSTEM)
SYMPTOM HEADLAMP NOT LIGHTING.
CONDITION WHITE BULB.
TEST/INSPECTION 1. Check bulb.
a. Gas leak.
Replace bulb.
CONDITION BROKEN ELEMENT.
TEST/INSPECTION 1. Check for loose headlamp housing and bulb socket.
a. Vibration problem.
Tighten headlamp mounting screws. Lock bulb in socket. Replace bulb.
CONDITION MELTED FILAMENT (ends of element holder) AND BLACK BULB.
TEST/INSPECTION 1. Check voltage at headlamp at different speeds. It must not be above 15 Vdc.
a. Excessive voltage in lighting circuit.
Replace alternator. Retest.
SYMPTOM HEADLAMP DIMING.
CONDITION NORMAL USE.
1. Check voltage at headlamp at different speeds. It must not be below 11 Vdc.
a. Insufficient voltage in lighting circuit.
Replace alternator and retest.
2. Visually inspect wiring harness for damaged and/or melted wires and/or bad wire terminal crimping and/or
connections.
a. Heating, rotating or sharp part in contact with harness. Improper harness routing.
Repair/replace damaged wires and/or terminals. Reroute harness where necessary.
TEST/INSPECTION
3. Check if optional electric accessories are overloading the alternator.
a. Excessive electrical load to alternator.
Reduce the electrical load by removing excess accessories. Reconnect as recommended by manufacturer.
60 Te m plat e
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