Section 02 TROUBLESHOOTING
Sub-Section 05 (ELECTRICAL SYSTEM)
02-05-5
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).
5. Verify if optional electric accessories are overloading the magneto/generator.
a.Excessive electrical load to magneto/generator.
Reduce the electrical load by removing excess accessories. Reconnect as
recommended by manufacturer.
6. Hot Grips brand: Verify if they were connected in parallel by mistake.
a.Excessive electrical load to magneto/generator.
Reconnect as recommended by manufacturer.
7. Bombardier heating grips: Verify if the return wires of the elements were
grounded to the chassis by mistake.
a.Faulty installation of optional equipment.
Reconnect as recommended by manufacturer.
8. Verify if heating grips installation overloads the magneto/generator capacity.
a.Excessive electrical load to magneto/generator.
Reduce the electrical load by removing accessories.
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