Generating System; Generating Voltage Inspection; Alternator Charging Coil Inspection - Honda TRX450R Service Manual

ELECTRICAL ('04 - '05)
GENERATING SYSTEM
GENERATING VOLTAGE INSPECTION
Start the engine and warm it up to the operating
temperature.
Stop the engine.
Remove the top cover (page 3-5).
Disconnect the handlebar switch 4P connector.
Connect the voltmeter positive (+) probe to the
Black wire terminal and negative (-) probe to the
Green wire terminal of the wire harness side 4P con-
nector.
Restart the engine.
Measure the generating voltage when the engine
runs at 5,000 rpm.
The voltage will
drops about 1 V
when the fan motor
is running.
STANDARD: 13 - 16 V
Connect the handlebar switch 4P connector.
Install the top cover (page 3-5).
ALTERNATOR CHARGING COIL
INSPECTION
Remove the right front fender (page 3-6).
Disconnect the alternator 3P gray connector.
HANDLEBAR SWITCH 4P CONNECTOR
Measure the resistance between the Yellow wire
terminals of the alternator side connector.
STANDARD: 0.1 - 1.0 Q. at 20°C (68°F)
Check for continuity between each wire terminal of
the alternator side connector and ground.
There should be no continuity.
Replace the alternator stator if resistance is out of
specification, or if any wire has continuity to
ground.
1 ALTERNATOR 3P CONNECTOR
20-6