Suzuki DR-Z400S 2001 Service Manual page 219

7-22 ELECTRICAL SYSTEM
IGNITION COIL RESISTANCE
Remove the fuel tank. (
Disconnect the ignition coil lead wire, and then remove the
ignition coil.
Measure the ignition coil resistance in both the primary and sec-
ondary windings using the multi circuit tester. If the resistance in
both the primary and secondary windings is close to the speci-
fied values, the windings are in sound condition.
09900-25008: Multi circuit tester set
Tester knob indication: Resistance (Ω Ω Ω Ω Ω )
Ignition coil resistance
Primary: 0.1 – 1.0 Ω Ω Ω Ω Ω (terminal – ground)
Secondary: 12 – 20 kΩ Ω Ω Ω Ω (terminal – spark plug cap)
PICKUP COIL AND SIGNAL COIL PEAK VOLTAGE
NOTE:
Make sure that all of the couplers are connected properly.
Remove the seat. (
Remove the CDI unit cover 1 and disconnect the wire har-
ness coupler 2.
Measure the pickup coil and signal coil peak voltage in the fol-
lowing procedure.
Connect the multi circuit tester with the peak volt adaptor as
follows.
Pickup coil: Blue (+ probe) – Green (- probe)
Signal coil: Black (+ probe) – White (- probe)
09900-25008: Multi circuit tester set
Before using the multi circuit tester and peak volt adap-
tor, be sure to refer to the appropriate instruction manual.
Shift the transmission into neutral, and then turn the ignition
switch to the "ON" position.
Pull the clutch lever.
Press the starter button and allow the engine to crank for a
few seconds, and then measure the pickup coil and signal
coil peak voltage.
Repeat the above procedure a few times and measure the
highest pickup coil and signal coil peak voltage.
Tester knob indication: Voltage (
Pickup coil peak voltage: More than 5.0 V
Signal coil peak voltage: More than 1.4 V
4-2)
6-2)
)
1
2
B
Peak volt adaptor
W
+
BI
-
G
Generator
Pickup coil
Peak volt adaptor
+
B
-
W
BI
G
Generator
Signal coil