Suzuki DR 125 Service Manual page 156

6-6 ELECTRICAL SYSTEM
• Shift the transmission into neutral.
• Kick the kick starter lever and allow the engine to crank for a
few times, and then measure the ignition coil primary peak
voltage.
• Repeat the above procedure a few times and measure the
highest ignition coil primary peak voltage.
NOTE:
* Be sure to remove the spark plug, first, and then kick the kick
starter lever.
* Kick the kick starter lever as usual.
$ Ignition coil primary peak voltage: More than 150 V
% Tester knob indication: Voltage (&)
'
While testing, do not touch the tester probes and
spark plug to prevent receiving an electric shock.
If the voltage is lower than the standard values, inspect the igni-
tion coil.
IGNITION COIL RESISTANCE
• Remove the fuel tank. (!4-2)
• Disconnect the spark plug cap.
• Disconnect the ignition coil lead wire coupler 1, and then
remove the ignition oil.
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.
$ Ignition coil resistance
: 0.1 – 0.8 Ω Ω Ω Ω (W/Bl – B/W)
Primary
Secondary : 13 – 18 kΩ Ω Ω Ω (W/Bl – spark plug cap)
( Tester knob indication: Resistance (Ω Ω Ω Ω )
# 09900-25008: Multi circuit tester set
W/Bl
New spark plug
CDI
B/W
unit
Peak volt adaptor