5-3 ELECTRICAL SYSTEM
CHARGING OUTPUT CHECK
Start the engine and keep it running at 5000 r/min with lighting
switch turned ON.
Measure the DC voltage between the battery terminal � and �
with a pocket tester.
If the tester reads under or over following specification, check the no-lead
performance or replace the regulator/rectifier.
NO-LOAD PERFORMANCE
● Disconnect the magneto lead wire coupler.
● Start the engine and keep it running at 5000 r/min.
● Using a pocket tester, measure the AC voltage between the
White with Red tracer white lead wire and ground. If the
tester reading is as follows, magneto is in good condition.
REGULATOR/RECTIFIER
● Disconnect the coupler.
● Using the pocket tester(×1
㏀
range), measure the resis-
tance between the terminals as shown in the following table.
If the resistance checked is incorrect, replace the
regulator/rectifier.
Unit: Approx.
㏀
Ground
Ground
Ground
Y/W
W/R
B/R
Standard resistance
Lighting
Charging
Exciting
0.6-1.4Ϊ
0.6-1.4Ϊ
180-230Ϊ
NOTE:
When making this test, be sure that the battery is in
fully-charged condition.
09900-25002 Pocket tester
09900-25002 Pocket tester
09900-26006 Tachometer
STD charging output 14-15V at 5000 r/min
STD No-load performance
More than 100 V(AC)at
5000 r/min
STATOR COILS
● Using a pocket tester, measure the resistance between the lead
wire and ground. If the resistance checked is incorrect, replace
the coil.
� Probe of tester to:
�
Probe of tester to:
①
②
③
④
①
50-230
∞
∞
②
50-260
∞
∞
③
∞
∞
10-100
④
∞
∞
∞