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