Ignition Coil Inspection - Honda CB250N Shop Manual

ignition
System
.A"WARN1NG
•
To
avoid possible electrical
shock during voltage meas-
urements, do not touch
test
probe metal
parts.
If
the
peak
voltage
measured
at
the
CDI
unit
connector
is
ab-
normal, disconnect the
pulse
generator wire
3P
connector and
connect
the
adaptor probes
to
the putse generator
(blue/yel-
low) wire terminal
and body
ground.
In
the
same manner
as at the
CDI
unit
connector,
measure
the
peak
voltage
and compare
it
to
the voltage
measured
at
the
CDI
unit
connector.
•
If
the peak voltage
measured
at
the
CDI
unit
is
abnormal
and
the
one measured
at
the pulse generator
is
normal, the
wire harness has an open
circuit or loose
connections.
•
If
both
peak
voltages
measured
are
abnormal, check each
item,
in
the troubleshooting chart,
if all
items are normal,
the pulse generator
is
faulty.
ignition Coil
'
Inspection
Remove
the
fuel tank (page
2-4).
Disconnect
the
ignition coil
primary terminals and measure
the
primary
coil
resistance
of the ignition
coil.
Standard:
0.1-0.3 0
(20
o
C/68°F)
Disconnect
the spark plug
caps from
the spark plug
and meas-
ure the
secondary
coil
resistance
between
the
ignition
coil
green wire terminal and spark plug cap.
Standard:
6.5-9.7
kO (20°C/68°F!
(1)
PULSE
GENERATOR
3P
CONNECTOR
14-7