Honda XL125LK, Owner'S Manual

Page: 63 / 243

4-4
dummyhead dummyhead
IGNITION SYSTEM
IGNITION SYSTEM INSPECTION
• If there is no spark at the plug, check all connections
for loose or poor contact before measuring the peak
voltage.
• Use a commercially available digital multimeter with
an impedance of 10 M
Ω
/DCV minimum.
• The display value differs depending upon the
internal impedance of the multimeter.
• If using the Imrie diagnostic tester (model 625),
follow the manufacturer’s instructions.
Connect the peak voltage adaptor [1] to the digital
multimeter [2], or use the Imrie diagnostic tester.
IGNITION COIL PRIMARY PEAK
VOLTAGE
• Check all system connections before this inspection.
Poor connected connectors can cause incorrect
readings.
• Check the cylinder compression and check that the
spark plug is installed correctly in the cylinder head.
Disconnect the spark plug cap from the spark plug.
Connect a known good spark plug [1] to the spark plug
cap and ground it to the cylinder head as done in a
spark test.
With the ignition coil primary wire connected, connect
the peak voltage adaptor [1] or tester probes to the
ignition coil primary terminal [2] and body ground.
Shift the transmission into neutral.
Turn the ignition switch to "ON".
Crank the engine with the starter motor or kickstarter,
and read ignition coil primary peak voltage.
If the peak voltage is lower than the standard value,
follow the checks described in the troubleshooting chart
(page 4-3).
TOOL:
Imrie diagnostic tester (model 625) or
Peak voltage adaptor
07HGJ-0020100
with commercially available digital multimeter
(impedance 10 M
Ω
/DCV minimum)
[1]
[2]
[1]
TOOL:
Imrie diagnostic tester (model 625) or
Peak voltage adaptor
07HGJ-0020100
with commercially available digital multimeter
(impedance 10 M
Ω
/DCV minimum)
CONNECTION:
Black/yellow wire terminal (–) – Body ground (+)
PEAK VOLTAGE: 100 V minimum
[1]
[2]