Suzuki Boulevard M50, Service Manual, Page: 360 / 454

ELECTRICAL SYSTEM 9-11
GENERATOR NO-LOAD PERFORMANCE
• Disconnect the generator coupler. (

9-10)
• Start the engine and keep it running at 5 000 r/min.
Using the multi circuit tester, measure the voltage between three
lead wires.
If the tester reads under the specified value, replace the genera-
tor with a new one.

Generator no-load performance:
More than 70 V at 5 000 r/min (When engine is cold)

09900-25008: Multi circuit tester set

Tester knob indication: Voltage (~)
REGULATOR/RECTIFIER
• Remove the secondary gear case cover. (

8-40)
• Disconnect the regulator/rectifier couplers.
Measure the voltage between the lead wires using the multi cir-
cuit tester as indicated in the table below. If the voltage is not
within the specified value, replace the regulator/rectifier with a
new one.

09900-25008: Multi circuit tester set

Tester knob indication: Diode test (

)
Unit: V

1.4 V and more (tester’s battery voltage)
NOTE:
If the tester reads 1.4 V and below when the tester probes are
not connected, replace its battery.
Y
Y
Y
+
Probe of tester to:
-
Probe of tester to:
B/R
1
B/R
2
B
1
B
2
B
3
B/W
1
B/W
2
B/R
1
0 0.4 – 0.7 0.4 – 0.7 0.4 – 0.7 0.5 – 1.2 0.5 – 1.2
B/R
2
0 0.4 – 0.7 0.4 – 0.7 0.4 – 0.7 0.5 – 1.2 0.5 – 1.2
B
1
   
0.4 – 0.7 0.4 – 0.7
B
2
   
0.4 – 0.7 0.4 – 0.7
B
3
   
0.4 – 0.7 0.4 – 0.7
B/W
1
    
0
B/W
2
    
0
B
1
B
2
B
3
B/R
2
B/R
1
B/W
1
B/W
2
WIRE COLOR
B: Black, B/R: Black with Red tracer,
B/W: Black with White tracer
SA
MP
LE