Symptom: All the lights are not on Diagnosis procedures
Test lamp is not lit
Test lamp is lit.
All the lights are not on
AC power supplied lighting system
DC power supplied
lighting system
Separate conductors of lead wire bundle of magneto from the cables
of the whole vehicle. Check if there is power output from lighting coil
of magneto with lamp test method.
Press horn button or slide turn signal light.
Start engine and separate
connectors of rectification regulator
from cables of the whole vehicle.
Lights are lit.
Lights are not lit
Short circuit inside
rectifier
Disassemble headlamp assembly
and check if the bulb is burnt.
Electric horn sounds loudly
and turn signal light is lit.
Electric horn does not sound
and turn signal light is not lit.
Normal power
supply from
battery
Use a piece of wire to touch
quickly positive and negative
terminal of battery to check spark.
No spark at touch
Spark at touch
Battery is out
of power
.
1. Check if fuse is burnt;
2. Check wiring between
battery and ignition switch
for short circuit and break
3. Check if ignition switch is
broken or shorted.