16. ELECTRICAL EQUIPMENT SYM
16-4
TROUBLE DIAGNOSIS
Charging System
No power supply
l Dead battery
l Disconnect battery cable
l Fuse burned out
l Faulty ignition switch
Low voltage
l Weak battery
l Loose battery connection
l Charging system failure
l Voltage-current regulator failure
Intermittent power supply
l Loosen wire connector in charging system
l Loose battery cables
l Loose charging system connection
l Loose connection in lighting system
Charging system failure
l burn Fuse
l Loose, broken or shorted wire or wire
connection
l Faulty voltage-current regulator
l Faulty alternator
Ignition System
No spark produced by spark plug
l The spark plug is out of work
l The cable is poorly connected, open or
short-circuited
- Between alternator and C.D.I.
- Between CDI and ignition coil.
- Between CDI and main switch
l Poor main switch
l Poor C.D.I.
l alternator is out of work
Engine does not crank smoothly
l Primary coil circuit
- Poor ignition coil
- Poor connection of cable and connectors
- Poor main switch
l Secondary coil circuit
- Poor ignition coil
- Poor spark plug
- Poor high-tension cable
- Current leakage in the spark plug cap
l Incorrect ignition timing
- Poor alternator
- Improper installation of the pulse sensor
- Poor C.D.I.
Starting System
Starter motor does not work
l The fuse is blown
l The battery is not fully charge
l Poor main switch
l Poor starter switch
l The front and rear brake switches do not
operate correctly
l Starter magnetic switch is out of work
l The ignition coil is poorly connected, open or
short-circuited
l The starter motor is out of work
Weak starter motor
l Poor charging system
l The battery is not fully charged
l Poor connection in the windings
l The motor gear is jammed by foreign material
Starter motor is working, but engine
does not crank
l Poor starter motor pinion
l Poor starter clutch
l The starter motor run in reverse direction
l Poor battery
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