Yamaha XP500 Service Manual page 526

2. Voltage
• Connect the pocket tester (DC 20 V) to the
meter assembly coupler (wire harness
side) as shown.
Positive tester probe → green 1
Negative tester probe → black/white 2
• Set the main switch to "ON".
• Measure the voltage (DC 12 V) of green 1
on the meter assembly coupler (wire har-
ness side).
• Is the voltage within specification?
YES
NO
Check the wiring
connections of the
entire signaling sys-
tem.
SIGNALING SYSTEM
3. Fuel meter
• Set the main switch to "ON".
• Move the float up 1 or down 2.
• Check that the fuel meter appear to "E" or
"F".
1
2
• Does the fuel meter appear appropriately?
This circuit is OK.
8 - 48
ELEC
YES
Replace the meter
assembly.
– +
NO