Honda EU10iT1, Manual

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3-5
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MAINTENANCE
SPARK PLUG CHECK/ADJUSTMENT/
REPLACEMENT
Remove the plug cover [1].
Clean any dirt from around the spark plug.
Disconnect the spark plug cap [1], and use a spark plug
wrench [2] to remove the spark plug [3].
Visually inspect the spark plug. Replace the plug if the
insulator [1] is cracked, chipped, or heavily fouled.
Check the sealing washer [2] for damage. Replace the
spark plug if the sealing washer is damaged.
Measure the plug gap with a wire-type feeler gauge. If
the measurement is out of the specification, adjust by
bending the side electrode.
Install the spark plug finger tight to seat the washer, and
then tighten it to the specified torque.
• A loose spark plug can become very hot and can
damage the engine. Overtightening can damage the
threads in the cylinder head.
Connect the spark plug cap securely.
Install the plug cover.
If the engine has been running, the engine will be
very hot. Allow it to cool before proceeding.
[1]
[2]
[1]
[3]
SPARK PLUG: LR4C – E (NGK)
PLUG GAP: 0.6 – 0.7 mm (0.024 – 0.028 in)
TORQUE: 11.8 N·m (1.2 kgf·m, 9 lbf·ft)
[1]
[2]
0.6 – 0.7 mm
(0.024 – 0.028 in)