15-32 ELECTRICAL SYSTEM
Ignition Coil Primary Peak Voltage Check
Disconnect the spark plug cap from the spark plug, but do
not remove the spark plug.
Connect the good spark plug [A] to the spark plug cap,
then touch the engine with it.
Measure the voltage with each lead connected cor-
The correct value may not be obtained if
Maintain the correct value of compression pressure for
the cylinder (Be sure to measure the voltage with the
spark plug install to the cylinder head).
Connect the peak voltage adapter [B] between the termi-
nal of primary lead (black) and ground connection of the
unit with the lead of the ignition coil [C] connected.
Special Tools - Peak Voltage Adapter: 57001-1415
Needle Adapter Set: 57001-1457
Black Lead [E] ←
IC Igniter [F]
Needle Adapter [G]
Shift the gear to the neutral position.
Crank the engine by pushing the starter button several
times to measure the peak voltage of the primary ignition
Ignition Coil Primary Peak Voltage
100 V or more
Electrical equipment can cause serious electrical
shock. To avoid being shocked, do not touch the
metal portion of the probe when measuring voltage.
If the voltage is less than the specified value, check the
ignition coil (see Ignition Coil Inspection).
If the ignition coil is good, check the other parts (see the
flow chart in this section).
If the all parts are good, replace the igniter.
Black Lead →