Yamaha XF50W Service Manual page 328

4. Coolant temperature indicator light
• Disconnect the coolant temperature sensor
coupler at the coolant temperature sensor.
• Connect the green/red®
with a jumper lead®.
• Set the main switch to "ON".
1
^
• Is the coolant temperature indicator light OK?
YES
V
This circuit is OK.
and black/blue®
2
NO
*
Replace the coolant
temperature indicator
light.
COOLING SYSTEM
8-46
+i
ELEC