Subsection 04 (CHARGING SYSTEM)
TEST CONDITIONS
Load
As required to decrease
battery voltage to 12 Vdc
Time
15 seconds
‡ Required for accurate testing
6. Read amperage on ammeter.
MODEL
SPECIFICATION
Base models (no-DPS,
not CE)
35 ± 5 Amps
DPS models
41 ± 5 Amps
All CE models
41 ± 5 Amps
If amperage or voltage is not within specification,
verify magneto and wires. Refer to
MAGNETO
AND STARTER
subsection. Replace:
– Voltage regulator if magneto test is within spec-
ifications.
– Magneto if magneto test is not within specifi-
cations.
VOLTAGE REGULATOR (RD)
RD
12V,18AH
RD2-1
RD2-3
BN4
BN1
RD1-1
BAT2
BAT1
RD1-3
BP3
SS-1
BP1
D2-2
R
vmr2015-047-001_a
Voltage Regulator Access
The voltage regulator/rectifier is accessible on the
RH rear side of the vehicle.
vmr2016-135-001_a
Voltage Regulator Continuity Test
Due to internal circuitry, there is no static test
available.
Voltage Regulator Power Test
1. Check voltage at RD1-1.
TEST CONDITIONS
RD1-1
Hot at all times
BACKPROBE
PROBE
SPECIFICATION
RD1-1
BAT2 (-)
Battery voltage
2. Connect a battery load tester such as the
NAPA
ULTRA PRO BATTERY LOAD TESTER (P/N 95260)
.
3. Start vehicle.
4. Ensure proper test conditions.
TEST CONDITIONS
Battery voltage at idle‡
Above 12.6 Vdc
Engine
Increase to 4000 RPM
Load
As required to decrease
battery voltage to 12 Vdc
Time
15 seconds
‡ Required for accurate testing
5. Measure voltage drop.
BACKPROBE
PROBE
SPECIFICATION
RD1-1
BAT1 (+)
Under 0.2 Vdc
If voltage drop is above specification, locate and
repair damaged connector/wire.
Voltage Regulator Ground Test
1. Check ground at RD1-3.
vmr2016-135
3