ELECTRICAL COMPONENTS
8-98
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a. Attach the engine tachometer to the spark
plug lead of the front cylinder.
b. Connect the pocket tester (DC 20 V) to the
rectifier/regulator coupler as shown.
c. Start the engine and operate it run at approx-
imately 5000 r/min.
d. Measure the charging voltage.
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EAS28180
CHECKING THE HORN
1. Check:
• Horn resistance
Out of specification → Replace.
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a. Disconnect the horn connectors from the
horn terminals.
b. Connect the pocket tester (Ω × 1) to the horn
terminals.
c. Measure the horn resistance.
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2. Check:
• Horn sound
Faulty sound → Adjust or replace.
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a. Connect a battery (12 V) to the horn.
b. Turn the adjusting screw in direction “a” or “b”
until the specified horn sound is obtained.
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EAS3D81012
CHECKING THE OIL LEVEL SWITCH
1. Drain:
• Engine oil
2. Remove:
• Oil level switch
(from the crankcase)
3. Check:
• Oil level switch resistance
Out of specification → Replace the oil level
switch.
Charging voltage
14 V at 5000 r/min
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
black/red “1”
• Negative tester probe →
black “2”
Coil resistance
1.01–1.11 Ω
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
2
1
B
B/R
B/RB/RB/R
• Positive tester probe →
horn terminal “1”
• Negative tester probe →
horn terminal “2”
Oil level switch resistance
Minimum level position
114–126 Ω
Maximum level position
484–536 Ω
1
2
a
b
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