Checking The Voltage Regulator - KTM 400 EXC AUS 2011 Repair Manual

lllWlRING HARNESS, BATTERY
84
ChackinR tIIa yoltaRa raRulamr
• Info
- Go through the steps of starting the engine. (-- p. 10)
Measure the voltage between the specified points.
Measuring point Plus
(+) -
Measuring point Ground (-)
I
Charging voltage
5,000 rpm 113.5 ... 15.0 V
• If the displayed value is less than the specified value:
- Check the plug-in connections from the alternator to the voltage regulator.
- Check the plug-in connectors from the voltage regulator to the wiring har-
ness.
- Alternator - check the light and battery winding. (-- p. 190)
• If the displayed value is greater than the specified value:
- Change the voltage regulator.
I
A defective voltage regulator can have a variety of effects depending on whether there is no voltage or an excessively high volt-
age in the circuit. An excessively high voltage shortens the lamp service life.
Condition
The battery must be charged or the kickstarter must be used.
If there is no voltage in the circuit:
- Disconnect the voltage regulator from the circuit.
Warning
Material damage Separate the voltage regulator from the electric circuit
at idling speed only.
- If no voltage regulator is connected to the electric circuit, run the
engine at idling speed only. At higher speeds, the lighting system
wi II be destroyed.
- Go through the steps of starting the engine. (-- p. 10)
Guideline
I
Idle speed 11,550 ... 1,650 rpm
• If the power consumers are functioning:
- Change the voltage regulator.
• If there is no current in the circuit after the voltage regulator is changed:
- Alternator - check the light and battery winding. (-- p. 190>
- Check the wiring harness.
If there is vallase in the circuit:
- Connect the special tool to the multi meter.
I
Peak voltage adapter (58429042000) (-- p. 256)
• Inlo
I
When using the peak voltage adapter, adjust the measuring range of the
multi meter to DCV.
- Remove the main fuse. (-- p. 81)
(EXC EWAUS, EXC SIX DAYS)
- Switch off the light by pushing the light switch into the position ' .
(XC-W SIX DAYS)
- Press the light switch in up to the stop to switch off the light.
(EXC USA)
- Disconnect the plug-in connector from the light switch of the lighting
equipment.
- Connect the red measuring lead to the yellow/red cable. Apply the black mea-
suring lead to ground (brown cable).
lllWlRING HARNESS, BATTERY
84
ChackinR tIIa yoltaRa raRulamr
• Info
- Go through the steps of starting the engine. (-- p. 10)
Measure the voltage between the specified points.
Measuring point Plus
(+) -
Measuring point Ground (-)
I
Charging voltage
5,000 rpm 113.5 ... 15.0 V
• If the displayed value is less than the specified value:
- Check the plug-in connections from the alternator to the voltage regulator.
- Check the plug-in connectors from the voltage regulator to the wiring har-
ness.
- Alternator - check the light and battery winding. (-- p. 190)
• If the displayed value is greater than the specified value:
- Change the voltage regulator.
I
A defective voltage regulator can have a variety of effects depending on whether there is no voltage or an excessively high volt-
age in the circuit. An excessively high voltage shortens the lamp service life.
Condition
The battery must be charged or the kickstarter must be used.
If there is no voltage in the circuit:
- Disconnect the voltage regulator from the circuit.
Warning
Material damage Separate the voltage regulator from the electric circuit
at idling speed only.
- If no voltage regulator is connected to the electric circuit, run the
engine at idling speed only. At higher speeds, the lighting system
wi II be destroyed.
- Go through the steps of starting the engine. (-- p. 10)
Guideline
I
Idle speed 11,550 ... 1,650 rpm
• If the power consumers are functioning:
- Change the voltage regulator.
• If there is no current in the circuit after the voltage regulator is changed:
- Alternator - check the light and battery winding. (-- p. 190>
- Check the wiring harness.
If there is vallase in the circuit:
- Connect the special tool to the multi meter.
I
Peak voltage adapter (58429042000) (-- p. 256)
• Inlo
I
When using the peak voltage adapter, adjust the measuring range of the
multi meter to DCV.
- Remove the main fuse. (-- p. 81)
(EXC EWAUS, EXC SIX DAYS)
- Switch off the light by pushing the light switch into the position ' .
(XC-W SIX DAYS)
- Press the light switch in up to the stop to switch off the light.
(EXC USA)
- Disconnect the plug-in connector from the light switch of the lighting
equipment.
- Connect the red measuring lead to the yellow/red cable. Apply the black mea-
suring lead to ground (brown cable).