Service manual

7-7
ELEC
Electrical system
– +
[kΩ]
È Tester lead +
É Tester lead -
“” mark: The needle swings toward zero
once, and then returns to the home position.
TIP:
• The resistance values will vary from tester
to tester, especially with electronic digital
testers. For some testers, the polarity of the
leads is reversed.
• The “
∞” mark indicates no continuity.
Charge coil
Charge coil output peak voltage
1. Measure the charge coil output peak volt-
age.
2. Measure the charge coil resistance if
below specification.
TIP:
• To crank the engine, connect the engine
shut-off cord to the engine shut-off switch,
and then push the engine start switch and
engine stop switch simultaneously.
• If measuring the charge coil output peak
voltage under the “Cranking” and
“Unloaded” conditions, disconnect the
charge coil terminals.
Charge coil resistance
1. Measure the charge coil resistance.
2. Replace the charge coil if out of specifi-
cation.
È
BWOBW/RPBr/W
É
B
10–
40
0
150–
600
3–11 2–6
W
∞ ∞∞∞∞∞
O
B0
10–
40
150–
600
3–11 2–6
W/R 9–36
50–
200
9–36
10–
40
17–
70
P
∞∞∞∞∞ ∞
Br/W
20–
80
15–
60
20–
80
250–
1000
50–
200
B
B
W
O
B
W/R
P
Br/W
Charge coil output peak voltage:
Brown/White (Br/W) – Black (B)
r/min
Unloaded Loaded
Cranking 1500 3500
V 180 20 210 150
Charge coil resistance at 20 °C (68 °F)
(reference data):
Brown/White (Br/W) – Black (B)
497.7–608.3 Ω
B
Br/W
B
Br/W
B