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3-74 FUEL SYSTEM (DFI)
Vehicle-down Sensor (Service Code 31)
Vehicle-down Sensor Installation
•
Be sure to install the rubber dampers [A] and collars [B]
on the battery case.
•
The UP mark [A] of the sensor should face upward.
WARNING
Incorrect installation of the vehicle-down sensor
could cause sudden loss of engine power. The
rider could lose balance during certain riding situ-
ations for an accident resulting in injury or death.
Ensure that the vehicle-down sensor is held in
place by the battery case.
•
Install the bracket.
•
Tighten:
Torque - Vehicle-down Sensor Mounting Bolts: 5.9 N·m
(0.60 kgf·m, 52 in·lb)
•
Install the removed parts (see appropriate chapters).
Vehicle-down Sensor Input Voltage Inspection
NOTE
â—‹
Be sure the battery is fully charged.
•
Turn the ignition switch off.
•
Disconnect the vehicle-down sensor connector and con-
nect the measuring adapter [A] between these connectors
as shown.
Main Harness [B]
Vehicle-down Sensor [C]
Special Tool - Measuring Adapter: 57001-1700
•
Connect a digital meter [D] to the measuring adapter
leads.
Vehicle-down Sensor Input Voltage
Connections to Adapter:
Digital Meter (+) → R (sensor BL) lead
Digital Meter (–) → BK (sensor G) lead
•
Measure the input voltage with the engine stopped and
with the connector joined.
•
Turn the ignition switch on.
Input Voltage
Standard: DC 4.75
∼ 5.25 V
•
Turn the ignition switch off.
If the reading is within the standard, check the output volt-
age (see Vehicle-down Sensor Output Voltage Inspec-
tion).
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