Honda GX270H Manual page 104

62Z7B000.book 5 ページ ２０１２年９月２７日 木曜日 午前１０時２１分
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IGNITION COIL AIR GAP CHECK/
ADJUSTMENT
Remove the fan cover (page 5-2).
Insert the feeler gauge [1] of proper thickness between
the ignition coil [2] and the flywheel [3].
IGNITION COIL AIR GAP:
0.2 – 0.6 mm (0.01 – 0.02 in)
• Avoid the magnet part of the flywheel when
• Adjust the ignition coil air gap equally on both side.
If measured clearance is out of specification, adjust the
air gap.
Loosen the two bolts (6 x 25 mm) [4].
Insert the feeler gauge of proper thickness between the
ignition coil and flywheel.
Push the ignition coil firmly against the flywheel and
tighten the ignition coil bolts securely.
Remove the feeler gauge.
SPARK TEST
Inspect the following before spark test.
• Faulty spark plug
• Loose spark plug cap
• Water in the spark plug cap (Leaking the ignition coil
• Loose ignition coil connector.
Disconnect the spark plug cap from the spark plug.
Connect a known-good spark plug to the spark plug cap
and ground the spark plug to the cylinder head.
Crank the engine by pulling the recoil starter forcefully
and check whether sparks jump across the electrode.
SPARK PLUG CAP INSPECTION
Measure the resistance of the spark plug cap [1] by
attaching one ohmmeter probe to the terminal in the
spark plug cap and the other to the high-tension cord
terminal.
RESISTANCE: 7.5 – 12.5 kΩ (20°C/68°F)
If measured resistance is out of specification, replace
the spark plug cap.
adjusting.
secondary voltage)
IGNITION SYSTEM
[2] 0.2 – 0.6 mm (0.01 – 0.02 in)
0.2 – 0.6 mm
(0.01 – 0.02 in)
[3]
[1]
[4]
9-5