Cause | Method of elimination |
The charging indicator light does not light when the ignition is turned on | |
| The light bulb burned out | Replace |
| The generator ground wire is loose or corroded | Check the reliability of the ground connection, tighten the screw |
| The battery is discharged | Charge |
| Open circuit between generator, ignition switch and indicator lamp | Check with a voltmeter according to the electrical diagram |
| The plug connection between the diode rectifier and the voltage regulator is faulty | Check and replace the plug if necessary |
| The graphite brushes do not fit the commutator | Check the ease of movement and length of the graphite brushes (minimum length 5 mm) |
| The generator excitation winding burned out | Replace the rotor |
The charging indicator light does not go out when the revs increase | |
| The V-belt has become loose | Tighten the V-belt |
| The voltage regulator is faulty | Check the generator voltage, replace the regulator if necessary |
| The D+ wire between the generator and the control lamp has broken through to ground | Check the wire and contacts, replace the wire if necessary |
The charging indicator lamp lights up when the ignition is off | |
| The rectifier diodes are short circuited | Check the diodes, replace the diode rectifier if necessary |
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