Charging System Inspection; Charging Output Specifications - Honda Gold Wing GL1200D Shop Manual

BATTERY/CHARGING SYSTEM
CHARGING SYSTEM INSPECTION
NOTE'
Use a fully charged 12V battery (electrolyte
specific gravity ahove 1.260) to test the charg-
ing output. Use of a low battery will result in
false readings.
Start the engine and warm it up to operating tempe-
rature.
Remove the main fuse; connect an ammeter to the
positive
(+)
and negative (-I terminals of the fuse
holder as shown.
f#
NOTE:
Use an ammeter which can measure the
rate of flow of current in both directions.
Do not hook up an ammeter between the
battery positive
(+)
terminal and the posi.
tive
(+)
cable of the battery. Failure to do
so can lead to a broken ammeter.
e
~HONDA
~GL1200D'GL1200A
BATIERY
MAIN FUSE
TERMINALS
Connect a voltmeter between the positive and
negative terminals of the battery.
Start the engine and take the readings on the
meters:
Allow the engine to run at 2,500 min-l (rpm)
immediately after starting. The needle of the
ammeter should be swung widely toward the
positive range of the dial, then returned to ±DA.
Check the charging outputs at the speeds shown
right.
Gradually raise the engine speed from the idle
to find the speed at which the output is ±OA.
CHARGING START: 1,000-1,200 min-
1
(rpm)
NOTE:
Measure the current after the fan motor has
come to a complete stop.
If the ammeter shows discharging even when the
engine speed is raised, the probabilities are:
Short circuit (excessive current draw)
Overcharged battery
Faulty alternator
loose or poor contact between alternator and
voltage regulator.
If the ammeter shows charging even when the
engine speed is lowered, this is an indication of:
Faulty voltage regulator/rectifier
Discharged battery
If the output voltage is outside of 14-t5V when
the engine speed is increased. the likelihood is:
. Faulty voltage regulator/rectifier
16-4
CHARGING OUTPUT SPECIFICATIONS (At hi-beam)
ENGINE PRM AMPERAGE
VOLTAGE
950 min-l (rpm)
(-)l-OA
ABOVE 12V
3,000 min-I (rpm)
(+)
D-SA
14-15V
5,000 min-I (rpm)
(+)
O-SA
14-15V