
Subsection 04 (CHARGING SYSTEM)
BATTERY REGULARLY DISCHARGED OR
WEAK
1.
Loose or corroded battery cable connections.
- Tighten or repair battery cable connections.
2.
Worn or defective battery.
- Charge and test battery.
3.
Defective magneto stator.
- Test stator, refer to MAGNETO AND STARTER
SYSTEM subsection.
4.
Defective regulator/rectifier.
- Test system voltage.
5.
Damaged magneto rotor or Woodruff key.
- Replace magneto rotor or Woodruff key, refer to
MAGNETO AND STARTER SYSTEM subsection.
PROCEDURES
Ensure battery is fully charged.
Refer to
WIRING HARNESS AND CONNECTORS
subsection for harness layout and connector loca-
tions on vehicle.
Refer to appropriate
WIRING DIAGRAM
for addi-
tional information.
The magneto is covered in
MAGNETO AND
STARTER
subsection.
WARNING
Ensure vehicle is in PARK when performing
charging system tests.
BATTERY LOAD TEST
1. Remove seat.
2. Connect a battery load tester such as the
NAPA
ULTRA PRO BATTERY LOAD TESTER (P/N 95260)
.
3. Ensure proper test conditions.
TEST CONDITIONS
Initial battery voltage‡
Above 12.5 Vdc
Engine
OFF
Load
3 times the amp-hour
(AH) rating
Time
15 seconds
‡ Required for accurate testing
SPECIFICATION
Battery
Above 9.6 Vdc
If battery voltage drops below specification dur-
ing test, replace battery and perform a
CHARG-
ING SYSTEM LOAD TEST
.
CHARGING SYSTEM LOAD TEST
RD
12V,18AH
BN4
BN1
RD1-1
BAT2
BAT1
RD1-3
BP3
SS-1
BP1
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1. Remove seat.
2. Connect a battery load tester such as the
NAPA
ULTRA PRO BATTERY LOAD TESTER (P/N 95260)
.
3. Start vehicle and read voltage on tester.
SPECIFICATION
Voltage
12.5 - 15 Vdc
If voltage is
above
specification, replace regulator
and continue
CHARGING SYSTEM LOAD TEST
.
4. Connect an ammeter such as
EXTECH INDUC-
TIVE AMMETER (P/N 380941)
around RD1-1 wire.
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DC CURRENT TEST WITH INDUCTIVE AMMETER
1. Output connector of voltage regulator
2. Ammeter clamped over RED wire
5. Ensure proper test conditions.
TEST CONDITIONS
Battery voltage at idle‡
Above 12.6 Vdc
Engine
Increase to 4000 RPM
2
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