6-20 ELECTRICAL SYSTEM
INSPECTION
IGNITION COIL PRIMARY PEAK VOLTAGE
• Disconnect the spark plug cap.
• Connect a new spark plug
1
to spark plug cap and ground it
to the cylinder head.
NOTE:
Make sure that the spark plug cap and spark plug are connected
properly and the battery is fully-charged.
Measure ignition coil primary peak voltage using the multi-circuit
tester in the following procedure.
• Connect the multi-circuit tester with the peak voltage adaptor
as follows.
+
Probe: Black/White lead wire or ground
-
Probe: Black lead wire
NOTE:
Do not disconnect the ignition coil primary wires.
\ 09900-25008: Multi-circuit tester set
• Turn the ignition switch to the “ON” position.
• Push the starter button and allow the engine to crank for a few
seconds, and then measure the ignition coil primary peak volt-
age.
• Repeat the above procedure a few times and measure the
highest ignition coil primary peak voltage. If the voltage is
lower than the standard values, inspect the ignition coil.
W Tester knob indication: Voltage ()
Ignition coil primary peak voltage: 150 V and more
#
When using the multi-circuit tester and peak volt
adaptor, refer to the appropriate instruction manual.
While testing, do not touch the tester probes and
spark plug to prevent receiving an electric shock.
Peak volt adaptor
CDI
unit
Battery
New spark plug
Ignition
coil
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