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ELEC
IGNITION SYSTEM
EAS00743 EAS00747
4. Ignition spark gap
The following procedure applies to all of the
spark plugs.
• Disconnect the spark plug cap from the
spark plug.
• Connect the ignition checker
1
as shown.
2
Ignition coil
• Set the main switch to “ON”.
• Measure the ignition spark gap
a
.
• Crank the engine by pushing the starter
switch and gradually increase the spark
gap until a misfire occurs.
Minimum ignition spark gap
6 mm (0.24 in)
• Is there a spark and is the spark gap within
specification?
NO
YES
The ignition system
is OK.
5. Ignition coil resistance
The following procedure applies to all of the
ignition coils.
• Disconnect the ignition coil leads from the
wire harness.
• Connect the pocket tester (
Ω
×
1) to the
ignition coil as shown.
Positive tester probe
→
ignition coil terminal
Negative tester probe
→
ignition coil terminal
• Measure the primary coil resistance.
Primary coil resistance
1.19 ~ 1.61
Ω
at 20 °C (68 °F)
• Connect the pocket tester (
Ω
×
1k) to the
ignition coil as shown.
Negative tester probe
→
ignition coil terminal
1
Positive tester probe
→
spark plug terminal
2
• Measure the secondary coil resistance.
Secondary coil resistance
8.5 ~ 11.5 k
Ω
at 20 °C (68 °F)
• Is the ignition coil OK?
YES
NO
Replace the ignition
coil.