Suzuki FL125S Service Manual page 223

IGNITION COIL RESISTANCE
• Remove the rear center leg shield. ($5-6)
• Disconnect the ignition coil lead wire 1 and remove the igni-
tion coil 2.
• Remove the spark plug cap. ($6-22)
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)
% Ignition coil resistance
Primary: 0.2 – 0.9 Ω (+ Tap – - Tap)
Secondary: 11 – 20 kΩ (Spark plug cap – - Tap)
PICK-UP COIL PEAK VOLTAGE
• Remove the frame covers, left and right. ($5-7)
NOTE:
Make sure that all of the couplers are connected properly and
the battery is fully charged.
• Disconnect the CDI unit coupler 1.
Measure the pick-up coil peak voltage in the following proce-
dure.
• Connect the multi-circuit tester with the peak volt adaptor as
follows.
+ Probe: Blue/Yellow lead wire
- Probe: Ground
& 09900-25008: Multi-circuit tester set
#
Before using the multi-circuit tester and peak volt
adaptor, be sure to refer to the appropriate instruction
manual.
• Turn the ignition switch to the "ON" position.
• Push the starter button and allow the engine for a few sec-
onds, and then measure the pick-up coil peak voltage.
• Repeat the above procedure a few times and measure the
highest pick-up coil peak voltage.
3 Tester knob indication: Voltage (2)
% Pick-up coil peak voltage: 2.0 V or more
ELECTRICAL SYSTEM
CDI unit
Peak volt
coupler
adaptor
Bl/Y Bl/Y
Generator
6-23