Yamaha F40BMHD Wartungshandbuch Seite 494

– +
ELEC
a
ENRICHMENT CONTROL SYSTEM
Y/B
Y/B
CHECKING THE BATTERY
Refer to "CHECKING THE BATTERY" on
page 3-21.
CHECKING THE FUSE
Refer to "CHECKING THE FUSES" on
page 8-22.
CHECKING THE MAIN SWITCH
Refer to "CHECKING THE MAIN SWITCH"
on page 8-18.
CHECKING THE POWER COIL
OUTPUT PEAK VOLTAGE
Measure:
• Power coil output peak voltage
Below specification → Replace the
Power coil.
Output peak voltage
Cranking
r/min.
Opened Closed
D.C. V 15
Peak voltage adaptor
YU-39991/90890-03169
CHECKING THE THERMO HEATER
PLUNGER
1. Measure:
• Thermo heater resistance
Out of specification → Replace.
Thermo heater resistance
Yellow/Black (Y/B) -
Yellow/Black (Y/B)
18 Ω Ω Ω Ω - 19 Ω Ω Ω Ω at 20 °C (68 °F)
2. Measure:
• Thermo heater plunger projection
length
Out of specification → Replace.
8-32
Y/B - Y/B
1,500
7 25
a
E
3,500
67