Suzuki Intruder VZR1800 Service Manual page 453

10-28 ELECTRICAL SYSTEM
IGNITION COIL RESISTANCE
• Disconnect the spark plug caps. (!10-25)
• Measure the ignition coil resistance in both the primary and
secondary windings. If the resistance is not within the stan-
dard range, replace the ignition coil with a new one.
" 09900-25008: Multi-circuit tester set
( Tester knob indication: Resistance (Ω)
$ Ignition coil resistance
Primary: 1.8 – 3.0 Ω (+ terminal – - terminal)
Secondary: 16 – 26 kΩ (Plug cap – - terminal)
CKP SENSOR PEAK VOLTAGE
• Remove the fuel tank. (!6-3)
• Remove the left frame side cover. (!9-5)
• Remove the left frame lower side cover. (!3-6)
• Disconnect the CKP sensor lead wire coupler 1 and connect
the multi-circuit tester with the peak volt adaptor.
Blue (+ Probe) – Green (- Probe)
• Measure the CKP sensor peak voltage at the CKP sensor
lead wire coupler.
#
Before using the multi-circuit tester and peak volt
adaptor, be sure to refer to the appropriate instruction
manual.
• Shift the transmission into the neutral and turn ignition switch
"ON".
• Crank the engine a few seconds with the starter motor by
depressing starter button and check the CKP sensor peak
voltage.
• Repeat the above test procedure a few times and measure
the highest peak voltage.
' Tester knob indication: Voltage (&)
" 09900-25008: Multi-circuit tester set
$ CKP sensor peak voltage: 1.5 V and more
If the peak voltage is within the specification, check the continu-
ity between the CKP sensor coupler and ECM coupler.
#
Normally, use the needle pointed probe to the back-
side of the lead wire coupler to prevent the terminal
bend and terminal alignment.
Ω
CKP sensor
coupler
G
Bl
CKP sensor
kΩ
Peak
volt
adaptor