Unit Inspection/Removal/Installation; Alternator - Honda Nighthawk CB 750 1991 Service Manual

Charging SystemIAlternator
Unit Inspection
Provided the circuit on the wire harness side is normal and
there are no loose connections at the connector, inspect the
regulatorlrectifier unit by measuring the resistance between
the terminals.
NOTE
-
You'll get false readings if the probes touch your fin-
gers.
Use the specified multimeters. Using other equipment
may not allow you to obtain the correct results. This is
due to the characteristic of semiconductors, which
have different values depending on the applied voltage.
Specific Multirneter :
(KOWA Digital type)
RECTIFIER PORTION
-
0 7 4 1 1-0020000
Unit : k n
-07308-0020001 ISANWA Analoaue Woe)
Probe3
,
I
4 1 5 1 6 1 7
-
..
-
-TH-5H (KOWA Analogue type)
Select the following range :
SANWA :
X
k 0
KOWA: X l 0 0 Q
An old battery stored in the multimeter could cause
1,
6 0.5-50
m
m
inaccurate readings. Check the battery if the test
results are not as ex~ected. 7 10.5-5010.5-5010.5-5010.5-501
Remove the fuel tank (page 2 - 4 )
Remove the fuel tank front cushion and left front side cover
Disconnect the regulatorlrectifier connector.
Remove the mounting bolt and regulatorlrectifier unit.
When using the KOWA multimeter, remember value
that all readings should be multiplied by 100.
REGULATOR PORTION Unit : k n
ProbeO
Installation is in the reverse order of removal
Replace the regulatorlrectifier unit if the resistance value
Probee
Alternator
NOTE
between the terminals is abnormal. 2
1 1
1 - 3 0 10.5-20
3
It is not necessaty to remove the stator to make this
test.
7
Disconnect the alternator 4P connector
Measure the resistance between the two Yellow wire termi-
nals, and between the White and Black wire terminals.
Standard :
Yellow
-
Yellow
0.4-0.6Q ( 2 U C l 6 8 F )
White
-
Black
2.1-2.6Q (2UC168F)
Replace the stator if the resistance is out of specification or
if there is continuity between the Yellow or White wire
terminal and ground.
(1) ALTERNATOR
1
\CONN~CTOR
- w
I