Section 03
TROUBLESHOOTING
Subsection 05
(ELECTRICAL SYSTEM)
03-05-4
4. Check ignition switch.
a. Defective contacts in ignition switch.
Replace.
5. Check solenoid of electric starter.
a. Shorted solenoid wiring harness or eroded contact washer.
Replace.
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 Vac.
NOTE:
If quartz halogen bulb is involved, ensure that proper voltage regulator is
installed.
a. Excessive voltage in lighting circuit.
Replace voltage regulator and ensure proper grounding. Retest.
SYMPTOM
HEADLAMP DIMING.
CONDITION
NORMAL USE.
Test/Inspection
1. Check voltage at headlamp at different speeds. It must not be below 11 Vac.
a. Insufficient voltage in lighting circuit.
Replace voltage regulator 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.
3. On manual start models: Verify regulator ground.
a. Rusted or loose retaining screws.
Clean, apply lithium grease (LMZ1) and firmly tighten screws.
4. Verify if there is an interconnection between AC and DC current.
a. Faulty installation of optional equipment.
Find optional equipment connected directly to DC ground (BK wire or chassis) or to any DC
hot wire (RD, RD/BL). Disconnect and reconnect to AC current (YL and YL/BK wires).
Summary of Contents for Formula S 1998
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