Control Data; Flywheel Check; Recharge Check; Voltage Regulator - APRILIA SX 125 Service Station Manual

Electrical system
1. Instrument panel
2. Key switch
3. fuses
4. Battery

5. Voltage regulator

6. Generator

Recharge check

•
Start the engine and make it run at 6000 rpm.
•
Connect a tester in voltmeter function to check the direct current on the battery leads.
•
Turn on the low-beam lights.
•
The voltage must be between 13.5 and 15 V.
Troubleshooting
•
Check that the fuses are in good conditions.
•
Check the starter button.
•
Check the start-up relay.
•
Check the starter motor.

Control data

Flywheel check

•
Disconnect the alternator cable con-
nector.
•
Start the engine and make it run at
5000 rpm.
•
With the pocket tester measure the
voltage (alternating current) among the
three yellow cables. If the value indica-
ted by the tester is below 53 V, the
generator is faulty.
Standard off-load voltage: above 53 V (AC) at
6000 rpm.
ELE SYS - 58
RX SX 125