Yamaha 2004 YXR660 Service Manual page 392

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4. Voltage
• Connect the pocket tester (DC 20 V) to the
indicator light assembly 1 coupler.
Tester (+) lead → Brown terminal 1
Tester (–) lead →
White/Yellow terminal 2
• Turn the main switch to "ON".
• Check the voltage (12 V).
This circuit is not faulty.
SIGNALING SYSTEM
MEETS
SPECIFICATION
9 - 45
W/Y
B/G
W/L
OUT OF SPECIFICATION
The wiring circuit from the main switch to the
bulb socket connector is faulty, repair it.
– +
ELEC
1 2
Br Br W/Y
Br Br B/G
Br Br W/L