Honda SH300 2006 Manual page 436

IGNITION SYSTEM
With the ignition coil primary wire connected, con-
nect the Imrie diagnostic tester or peak voltage
adaptor probes to the ignition coil primary terminal
and ground.
TOOLS:
Imrie diagnostic tester (model 625) or
Peak voltage adaptor
with commercially available digital multimeter
(impedance 10 MΩ/DCV minimum)
CONNECTION: Yellow/Blue (+) – Ground (–)
Turn the ignition switch "ON" with the engine stop
switch at " ".
Measure the initial voltage at this time.
STANDARD: Battery voltage
If the initial voltage cannot be measured, check each
item in the troubleshooting chart (page 20-4).
Retract the sidestand.
Turn the ignition switch "ON" and squeeze the rear
brake lever fully.
Crank the engine with the starter switch and mea-
sure the ignition coil primary peak voltage.
PEAK VOLTAGE: 100 V minimum
If the peak voltage is abnormal, check each item in
the troubleshooting chart (page 20-4).
CKP SENSOR PEAK VOLTAGE
• Check all system connections before this inspec-
tion. Poor connected connectors can cause incor-
rect readings.
Remove the rear fender A (page 3-7).
Turn the ignition switch "OFF".
Disconnect the ECM 33P connector.
Connect the Imrie diagnostic tester or peak voltage
adaptor probes to the ECM connector terminals.
TOOLS:
Imrie diagnostic tester (model 625) or
Peak voltage adaptor
with commercially available digital multimeter
(impedance 10 MΩ/DCV minimum)
Test probe
CONNECTION: Yellow (+) – White/Yellow (–)
Retract the sidestand.
Turn the ignition switch "ON" with the engine stop
switch at " " and squeeze the rear brake lever fully.
Crank the engine with the starter switch and mea-
sure the CKP sensor peak voltage.
PEAK VOLTAGE: 0.7 V minimum
If the peak voltage measured at the ECM connector
is abnormal, measure the peak voltage at the CKP
sensor connector.
20-6
PROBE (+)
07HGJ-0020100
IGNITION COIL
ECM 33P CONNECTOR
07HGJ-0020100
07ZAJ-RDJA110
PROBE (+)
PROBE (–)
PEAK VOLTAGE ADAPTOR
Y
W/Y
TEST PROVES
PROBE (–)
PEAK VOLTAGE ADAPTOR