APRILIA ATLANTIC 125 Workshop Manual page 205

ATLANTIC 125 - 200
ALTERNATOR LOADLESS OPERATION TEST
•
Disconnect the voltage regulator connector (1).
•
Start the engine and rev it up to 5000 rpm (rotate
throttle twistgrip up to 1/4th of travel).
•
Measure AC voltage across the three yellow (G) wires
using a multimeter.
alternately. Any reading below 50 V indicates a faulty
alternator.
ALTERNATOR CONTINUITY TEST
With the engine stopped:
•
Disconnect the voltage regulator connector (1).
•
Check for continuity across the yellow (G) wires
coming from the stator.
•
Check insulation of stator mount.
Correct resistance reading: 0.1 – 1 ohm
Correct resistance across wires and stator mount:
∞ ( infinite)
Test across all terminals
ELECTRICAL SYSTEM
8 - 11