Sym Joyride 125 Service Manual page 240

Troubleshooting
No voltage
Battery discharged
●
The cable disconnected
●
The fuse is blown
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Improper operation of the main switch
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Low voltage
The battery is not fully charged
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Poor contact
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Poor charging system
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Poor regulator rectifier
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No spark
Poor spark plug
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The cable is poorly connected, open or
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short-circuited
Poor connection between ECU and ignition
●
coil
Poor main switch
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Poor ECU
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Abnormal AC Generator
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Starter motor does not work
The fuse is blown
●
The battery is not fully charge
●
Poor main switch
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Poor starter switch
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The front and rear brake switches do not
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operate correctly
Starter relay is out of work
●
The ignition coil is poorly connected, open
●
or short-circuited
The starter motor is out of work
●
To this chapter contents
Intermittent voltage
The connector of the charging system
●
becomes loose
Poor connection of the battery cable
●
Poor connection or short-circuit of the
●
charging system
Poor connection or short-circuit of the power
●
generation system
Abnormal charging system
Burnt fuse
●
Poor contact, open or short circuit
●
Poor regulator rectifier
●
Poor AC Generator
●
Engine does not crank smoothly
Primary winding circuit
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-
-
-
Secondary winding circuit
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-
-
-
-
Incorrect ignition timing
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-
-
-
Weak starter motor
Poor charging system
●
Battery is not fully charged
●
Poor connection in the windings
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The motor gear is jammed by foreign
●
material
Starter motor works but engine does
not crank
Poor starter motor pinion
●
The starter motor run in reverse direction
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Abnormal battery
●
18. Electrical System
Poor ignition coil
Poor connection of cable and
connectors
Poor main switch
Poor ignition coil
Poor spark plug
Poor ignition coil cable
Current leakage in the spark plug
Poor AC Generator
Improper installation of CPS
Poor ECU
18-3