Light System Inspection - Yamaha TT600R Service Manual

LIGHT SYSTEM INSPECTION

NOTE:
To proceed to the control of the light system, start the engine and then stop it by the emergency engine
stop switch. In this way the light relay remains excited and it is possible to check the light system.
1. The front headlight and the high beam light fail to turn on.
1. Bulb and bulbholder.
•
Check the continuity of the bulb and bulb-
holder.
Refer to "BULB INSPECTION" section.
2. Voltage.
•
Connect the pocket tester (DC 20V) to the
front headlight connectors and the high
beam switch.
Headlight:
Tester terminal (+)
Green (2) or Yellow (1) cable
Tester terminal (–)
High beam light:
Tester terminal (+)
Tester terminal (–)
A
B
[A] When the lights switch (commutator) is at
position "HI".
[B] When the lights switch (commutator) is at
position "LO".
CONTINUITY
Black cable (3)
Yellow cable (4)
Black cable (5)
7-46
LIGHT SYSTEM
DISCONTINUITY
Replace the bulb and/or the bulbholder.
OUT OF SPECIFICATION
The circuit from the main switch to the bulbhol-
der connector is defective. Repair.
ELEC