16-48
ENGINE ELECTRICAL
-
lanition
Svstem
\
/
27EL0086
/
DEL0087
INSPECTION
SPARK PLUG
Check the plug gap and replace if the limit is exceeded.
Standard value:
1.0-l
.l mm (.039-.043 in.)
Limit: 1.3 mm
(.051
in.)
Caution
1.
Do not attempt to adjust the gap of the platinum plug.
2.
Cleaning of the platinum plug may damage the plati-
num tip. Therefore, if carbon deposits must be re-
moved, use a plug cleaner and complete cleaning with-
in 20 seconds for protection of the electrode. Do not
use wire brushes.
SPARK PLUG CABLE
(1) Check cap and coating for cracks.
(2) Measure resistance.
Limit: Max. 22
ksZ
IGNITION POWER TRANSISTOR
NOTE
An analog-type circuit tester should be used.
No. l-No. 4 coil side
(1)
Connect the negative
(-)
terminal of the 1.5 V power supply
to terminal (4) of the ignition power transistor; then check
whether there is continuity between terminal (13) and termi-
nal (4) when terminal (3) and the positive
(+)
terminal
are connected and disconnected.
NOTE
Connect the
(-)
probe of the circuit tester to terminal (13).
Terminal 3 and
(+)
terminal
Connected
Terminal 13 and terminal 4
Continuity
I
Unconnected
I
No
continuitv
(2)
Replace the ignition power transistor if there is a malfunc-
tion.
No. ~-NO. 5 coil side
(1)
Connect the negative
(-)
terminal of the 1.5 V power supply
to terminal (4) of the ignition power transistor; then check
whether there is continuity between terminal (12) and termi-
nal (4) when terminal (2) and the positive
(+)
terminal
are connected and disconnected.
NOTE
Connect the
(-)
probe of the circuit tester to terminal (12).
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