Suzuki AN400 Service Manual page 316

8-24 ELECTRICAL SYSTEM
IGNITION COIL RESISTANCE INSPECTION
• Remove foot board. (!7-19)
• Disconnect the ignition coil read wire.
Measure the ignition coil resistance in both the primary and sec-
ondary windings. If the resistance is not within the standard
range, replace the ignition coil with a new one.
" 09900-25008: Multi circuit tester set
# Tester knob indication: Resistance (Ω Ω Ω Ω )
$ Ignition coil/plug cap resistance
: 3 – 5 Ω Ω Ω Ω ( + Terminal – - Terminal)
Primary
Secondary: 17 – 30 kΩ Ω Ω Ω (Plug cap – + Terminal)
CKP SENSOR PEAK VOLTAGE INSPECTION
• Remove the front leg shield. (!7-12)
NOTE:
When making this test, be sure that the battery is in fully
charged condition.
• Disconnect the ECM coupler.
• With the lead wire's fastener A un locked, pull out the lead
wire (G/W, Bl).
• Connect the multi circuit tester with the peak voltage adaptor
as follows.
+ Probe: Green/White lead wire
- Probe: Blue lead wire
" 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.
• Set the side-stand upright position, and then turn the ignition
switch to the "ON" position.
• Grasp the front or rear brake.
• Pull the starter button and allow the engine to crank for a few
seconds, and then measure the CKP sensor peak voltage.
• Repeat the above procedure a few times and measure the
highest peak voltage.
& Tester knob indication: voltage (')
$ CKP sensor peak voltage: 4.5 V and more
If the peak voltage is lower than the specified values, check the
peak voltage at the CKP sensor lead wire coupler.
ECM coupler
CKP sensor coupler
G/W
Bl
CKP sensor
Peak
volt
adaptor