Spark Plug Replacement; Spark Arrester Cleaning (If Equipped) - Honda GX240 Technical Manual

Spark Plug Replacement

CAUTION
If the engine has been running, the engine will
be very hot. Allow it to cool before proceeding.
Remove the spark plug cap, and then remove the spark plug (1) using a
spark plug wrench (2).
Verify the new spark plug gap is correct.
Install a new spark plug finger-tight to seat the washer, and then tighten 1/2
turn with a spark plug wrench.
SPARK PLUG: BPR6ES (NGK) W20EPR-U(DENSO)
A loose spark plug can become very hot and can damage the engine.
Overtightening can damage the threads in the cylinder block.
Install the spark plug cap securely.

Spark Arrester Cleaning (if equipped)

CAUTION
The engine and the muffler becomes very hot
during operation and remains hot for a while
after stopping the engine. Be careful not to
touch the muffler while it is hot. Allow it to cool
before proceeding.
Solid Protector type
Remove the muffler cover, if equipped.
Remove the 5 x 8 mm tapping screws (1), 6 x 10 mm tapping screw (2), and
muffler protector (3).
Remove the 5 x 8 mm tapping screws (4) and spark arrester (5).
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GX240 • GX270 • GX340 • GX390 (UT2/RT2) Technical Manual
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© 2010 American Honda Motor Co., Inc — All Rights Reserved
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