Checking The Recharging System; Checking The Recharging Voltage; Checking The Alternator No-Load - APRILIA Atlantic 500 Workshop Manual

Electrical Equipment

CHECKING THE RECHARGING SYSTEM

The following key will help the reader to consult this
section.
CABLE COLOURS
Ar orange
Az light blue
B blue
Bi white
G yellow
Gr gray
M brown
N black
R red
V green
Vi violet
Ro pink

CHECKING THE RECHARGING VOLTAGE

• Check the electrolyte level (CHECKING THE
ELECTROLYTE LEVEL).
• Check the battery voltage (RECHARGING THE
BATTERY).
• Start the engine and rev it up to 5000 rpm (throttle
twist grip rotated by approximately 1/4 of its
travel).
• Set the lights switch in the " " position and the
lights selector switch in the " " position.
• Using a pocket multimeter, measure the direct
voltage between the positive (+) and negative (-)
terminals of the battery.
• If the multimeter reads voltages of less than 13 V
or more than 15 V:
• check the no-load operation and continuity of the
alternator (CHECKING THE ALTERNATOR NO-
LOAD OPERATION) and (CHECKING THE
ALTERNATOR CONTINUITY) and the voltage
regulator (VOLTAGE REGULATOR).
Key to second figure
17) Voltage regulator
19) Battery
37) Ignition switch (right switch)
24) Main fuse
Standard charging voltage: 13 - 15 V (c.c.) at 5000
rpm.

CHECKING THE ALTERNATOR NO-LOAD

OPERATION
• Remove the right side panel, see (REMOVAL OF
THE SIDE PANELS).
• Detach regulator wiring connector (1).
• Start the engine and rev it up to 5000 rpm
(throttle twist grip rotated by approximately 1/4 of
its travel).
• Using a pocket multimeter, alternately measure
the a.c. voltage between the three yellow wires
(G). If the multimeter readings are less than 50 V,
the alternator is faulty.
Standard no-load voltage: more than 50 V (a.c.)
at 5000 rpm.
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Release 00 2002-09
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chap. 6
Atlantic 500
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