Troubleshooting - Sym Fiddle 50 Service Manual

Troubleshooting

No voltage
Battery discharged.
The cable disconnected.
The fuse is blown.
Improper operation of the main switch.
Low voltage
The battery is not fully charged.
Poor contact.
Poor charging system.
Poor voltage regulator.
No spark produced by spark plug
The spark plug is out of work.
The cable is poorly connected, open or
short-circuited.
- Between AC.G. and C.D.I.
Poor connection between C.D.I. and ignition
coil.
- Poor connection between C.D.I. and the
main switch.
Poor main switch.
Poor C.D.I.
AC.G. is out of work.
Starter motor does not work
The fuse is blown.
The battery is not fully charge.
Poor main switch.
Poor starter switch.
The front and rear brake switches do not
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.
This chapter Contents
15. ELECTRICAL EQUIPMENT
Intermittent power supply
The coupler of the charging system becomes
loose.
Poor connection of the battery cable.
Poor connection or short-circuit of the
discharging system.
Poor connection or short-circuit of the power
generation system.
Charging system does not operate
properly
Burnt fuse.
Poor contact, open or short circuit.
Poor regulator.
Poor ACG.
Engine does not crank smoothly
Primary coil circuit.
- Poor ignition coil.
- Poor connection of cable and couplers.
- Poor main switch.
Secondary coil circuit.
- Poor ignition coil.
- Poor spark plug.
- Poor ignition coil cable.
- Current leakage in the spark plug cap.
Incorrect ignition timing.
- Poor AC.G.
- Improper installation of the pulse sensor.
- Poor C.D.I.
Weak starter motor
Poor charging system.
The battery is not fully charged.
Poor connection in the windings.
The motor gear is jammed by foreign material.
Starter motor is working, but engine does
not crank
Poor starter motor pinion.
The starter motor run in reverse direction.
Poor battery.
15-3