Checking The Speed Sensor; Disassembling The Steering Set (Racing Version) - APRILIA Enjoy City Workshop Manual

Unscrew and remove speed sensor (2) with the
related O-ring.

CHECKING THE SPEED SENSOR

CHECKING PROCEDURE WITH THE SPEED
SENSOR INSTALLED
Read through the section PRECAUTIONS AND
GENERAL INFORMATION.
Remove the battery as described in the paragraph
REMOVING THE BATTERY.
Remove the side fairings as directed in the paragraph
REMOVING THE SIDE FAIRINGS so as to gain
access to the sensor connector.
Reinstall the battery to allow the measurements to be
taken.
Perform the checks with a multimeter.
Ensure that the battery is charged and that the sensor
is properly connected to the controller.
Connect a voltage meter between the white and black
wires of the sensor.
Set the main switch to ON.
Measure the voltage between the red and black wires.
The voltage should be 12 ± 2 V (if the voltage is
different, check the wiring or replace the controller).
Turn the pedals at an average frequency of 30 rpm
and measure the voltage between the white and black
wires. The voltage should be 2.5 ± 0.5 V dc.
When the pedals are turned slowly at a frequency of
approximately 10 rpm, the voltage should change
continuously from 0 V to 5 V.
DISASSEMBLING THE STEERING SET
(Racing Version)
Read through the section PRECAUTIONS AND
GENERAL INFORMATION.
Put the vehicle on the stand.
Remove the front wheel.
Loosen and remove the two screws (1).
Remove plate (2) and lower handlebars (3) in the front
part of the bicycle.
2
3
Release 00 2000-11
Enjoy
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