Yamaha Z200N Service Manual page 348

– +
ELEC
R/W B
FUEL CONTROL SYSTEM
Gy B/W
8400
CHECKING THE OXYGEN DENSITY
SENSOR
1. Measure:
• Oxygen density sensor heater resis-
tance
Out of specification → Replace.
Oxygen density sensor heater
resistance
Red/white (R/W) – Black (B)
2 - 100 Ω
2. Measure:
• Oxygen density sensor output voltage
Out of specification → Replace.
Oxygen density sensor output
voltage
Gray (Gy) – Black/white (B/W)
0.0 - 1.0 V
Measuring steps
WARNING
To prevent an explosion when performing
this procedure, keep all flammable prod-
ucts (e.g., gasoline) away from the testing
area and make sure there is proper ventila-
tion.
CAUTION:
Do not let any silicon anticorrosion solvent
touch the oxygen density sensor or its
accuracy will be affected.
(1) Remove the oxygen density sensor.
Refer to "OXYGEN DENSITY SEN-
SOR" on page 5-29.
8-25
E
8