Honda Crf250l Service Manual

19-6
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BATTERY/CHARGING SYSTEM
REGULATOR/RECTIFIER
REMOVAL/INSTALLATION
Remove the radiator reserve tank (page 9-12).
Disconnect the regulator/rectifier 5P connector [1].
Remove the bolts [2] and regulator/rectifier [3] from the
reserve tank stay.
Install the regulator/rectifier in the reverse order of
removal.
SYSTEM INSPECTION
Remove the right fuel tank shroud (page 2-4).
Turn the ignition switch OFF.
Disconnect the regulator/rectifier 5P connector [1], and
check it for loose contacts...

20-1
20
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20. LIGHTS/METERS/SWITCHES
SERVICE INFORMATION ···························20-2
SYSTEM LOCATION···································20-2
HEADLIGHT ················································20-3
POSITION LIGHT ········································20-3
TURN SIGNAL LIGHT ·································20-4
BRAKE/TAILLIGHT···················\
··················\
20-5
SPEEDOMETER························\
··················\
20-5
VS SENSOR...

20-2
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LIGHTS/METERS/SWITCHES
LIGHTS/METERS/SWITCHESSERVICE INFORMATION
GENERAL
 • Note the following when replacing the halogen headlight bulb.– Wear clean gloves while replacing the bulb. Do not put fingerpr ints on the headlight bulb, as they may create hot spots on the
bulb and cause it to fail.
– If you touch the bulb with your bare hands, clean it with a  cloth moistened with alcohol to prevent its early failure.
 • Be sure to install the dust cover after replacing the headlight...

20-3
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LIGHTS/METERS/SWITCHES
HEADLIGHT
BULB REMOVAL/INSTALLATION
Remove the headlight cowl (page 2-5).
Remove the dust cover [1].
Unhook the bulb retainer [2] and remove the headlight
bulb [3].
Avoid touching halogen headlight bulb. Fingerprints can
create hot spots that cause a bulb to break.
Install the bulb while aligning its tabs with the slots of
the headlight unit.
Hook the bulb retainer into the headlight unit groove.
Install the dust cover tightly against the headlight unit....

20-4
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LIGHTS/METERS/SWITCHES
TURN SIGNAL LIGHT
BULB REMOVAL/INSTALLATION
Remove the screw [1] and turn signal light lens [2] by
releasing its tab [3].
While pushing in the bulb [4], turn it counterclockwise to
remove it.
Installation is in the reverse order of removal.
Check that the packing is installed in position and is in
good condition, replace it with a new one if necessary.
FRONT TURN SIGNAL UNIT 
REMOVAL/INSTALLATION
Remove the headlight cowl (page 2-5).
Disconnect the front...

20-5
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LIGHTS/METERS/SWITCHES
BRAKE/TAILLIGHT
For brake/taillight removal/installation (page 2-8).
BULB REMOVAL/INSTALLATION
Remove the rear fender (page 2-7).
Remove the brake/taillight mounting screws [1] and
collars [2].
Remove the hook bolts [3] and collars [4].
Pull the tail cover/light unit [5] rearward while pulling up
the rear upper fender [6].
Turn the bulb socket [1] counterclockwise and remove
it.
While pushing in the bulb [2], turn it counterclockwise to
remove it....

20-6
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LIGHTS/METERS/SWITCHESSYSTEM INSPECTION
Check for loose or poor contact terminals at the
speedometer 16P connector.
When the ignition switch is turned ON, check that the
meter segments turn on.
If the speedometer does not show the initial function,
perform the power and ground line inspection of the
speedometer (page 20-6).
If the speedometer shows the initial function but
speedometer does not move when running, check the
speedometer/VS sensor system  inspection (page 20-8)....

20-7
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LIGHTS/METERS/SWITCHES
GROUND LINE
Check for continuity between the speedometer 16P
connector [1] and ground.
There should be continuity at all times.
If there is no continuity, check for an open circuit in the
Green wire.
BACK-UP VOLTAGE LINE
Measure the voltage between the speedometer 16P
connector [1] and ground.
There should be battery voltage at all times.
If there is no battery vo ltage, check the following:
– Open circuit in the Red wire
– Blown ODO, CLOCK fuse (5 A)
–...

20-8
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LIGHTS/METERS/SWITCHES
EXCEPT E TYPE:
Turn the ignition switch ON and engine stop switch  .
Push and hold both the A button [1] and B button [2]
until the hour digits [3] start blinking.
Push the B button until the desired hour is displayed.
Push and hold to advance the hour fast.
Push the A button, then the minute digits [4] start
blinking.
Push the B button until the des ired minute is displayed.
Push and hold to advance the minute fast.
Push both the A button and B button to...

20-9
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LIGHTS/METERS/SWITCHES
VS SENSOR INSPECTION
Remove the left side cover (page 2-3).
Check for loose or poor contact of the VS sensor 3P
(Blue) connector [1].
Disconnect the VS sensor 3P (Blue) connector.
Turn the ignition switch ON and engine stop switch  .
Measure the voltage between the VS sensor 3P (Blue)
connector terminals at the wire side.
If battery voltage appears, replace the VS sensor.
If there is no voltage, check the following:
– Black/red wire for open circuit
–...