Generic Race 50, Service Manual

Page: 40 / 209

39
Y N
Y N
Y N
Y
N
Trouble diagnosis program for weak illuminating lamp light
Illuminating lamp
light is dim
AC power supply
lighting system
DC power supply
lighting system
Disconnect bundle conductor of magneto
from connector of complete vehicle cable
and then use an ohm meter to measure if
resistance between output conductor ends
of lighting coil of magneto is less than
standard value
Turn on ignition switch, depress horn button, or
toggle turn signal lamp switch.
Lighting coil
shorted
Start engine and restrict its
speed, disconnect rectification
regulator from connector of
complete vehicle cable, and then
check brightness of illuminating
lamp light.
After disconnection,
illuminating lamp
light is set right.
After disconnection, illuminating
lamp light is still comparatively
dim.
Flat voltage of
rectification
regulator too low
Check charge coil and
internal wiring of charging
system of magneto for short
circuit
Electric horn
can make loud
and clear sound
and turn signal
lamp can give
off bright light
Electric horn is hoarse and turn signal
lamp light is dim
Battery level runs low or joint
between battery and ignition
switch contacts poorly
Check and
troubleshoot
Disconnect head lamp unit and
then check if head lamp bulb
glass renders black or
yellow-green
Check if power of bulb used
in lighting system is
satisfactory
Replace head
lamp bulb
1. Check internal contacts of
lighting switch and dimmer
switch for poor contact
2. Check connectors and
ground wires in system for
poor contact
Replace illuminating
lamp bulb