Suzuki AN400 Service Manual page 173

TO SENSOR INSPECTION
The tip over sensor is installed under the combination meter.
(#4-35)
NOTE:
When installing the TO sensor, bring the "UPPER" letter to the
top.
HO2 SENSOR (E-02, 19)
• The heated oxygen sensor is installed on the exhaust pipe.
(#4-42)
)
Do not remove the HO2 sensor while it is hot.
"
* Be careful not to expose it to excessive shock.
Do not use an impact wrench while removing or
installing the HO2 sensor unit.
* Be careful not to twist or damage the sensor lead
wire.
* Do not apply oil or other materials to the sensor air
hole.
( HO2 SENSOR: 47.5 N·m (4.75 kgf-m, 34.3 lb-ft)
FI SYSTEM 4-45