Yamaha YB50, Service Manual

Page: 146 / 161

ELEC
LIGHTING SYSTEM
7-16
NO CONTINUITY
Replace the bulb and/or bulb holder.
OUTSIDE SPECIFIED VALUE
The connection circuit of the main switch to
the bulb holder connector is defective, repair
it.
NO CONTINUITY
Replace the bulb and/or bulb holder.
OUTSIDE SPECIFIED VALUE
The connection circuit of the main switch to
the bulb holder connector is defective, repair
it.
2. The panel light does not light.
1. Bulb and bulb holder
• Check the bulb and bulb holder to see if
there is continuity.
CONTINUITY
2. Voltage
• Connect the pocket tester (20 V AC) on the
bulb holder coupler.
Cable (+) of the tester Blue terminal
Cable (–) of tester Black terminal
• Place the main switch on “ON”
• Check if there is a voltage (12 V) in the
“Blue cable” of the connector of the bulb
holder.
The circuit is in good condition
The circuit is in good condition.
SATISFIES THE
SPECIFIED
VALUE(12 V)
1. Bulb and bulb holder.
• Check the bulb and bulb holder for conti-
nuity.
3. The rear light does not light.
CONTINUITY
2. Voltage
• Connect the pocket tester (20 V AC) in the
bulb holder connector .
Cable (+) of the tester Blue terminal
Cable (–) of tester Black terminal
• Place the main switch on “ON”.
• Start engine.
• Check if there is a voltage (12 V on the
“Blue” cable of the bulb holder connec-
tor).
SATISFIES THE
SPECIFIED VALUE
(12 V)