Suzuki Intruder VZR1800, Service Manual

Page: 453 / 586

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 k
Ω
(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.
#
• 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.
#
k
Ω
Ω
Before using the multi-circuit tester and peak volt
adaptor, be sure to refer to the appropriate instruction
manual.
Normally, use the needle pointed probe to the back-
side of the lead wire coupler to prevent the terminal
bend and terminal alignment.
CKP sensor
Peak
volt
adaptor
CKP sensor
coupler
G
Bl