Honda GX630 Technical Manual page 32

SPARK ARRESTER (applicable types)
Your engine is not factory-equipped with a spark arrester. The
spark arrester is optional part. In some areas, it is illegal to operate
an engine without a spark arrester. Check local laws and
regulations. A spark arrester is available from authorized Honda
servicing dealers.
The spark arrester must be serviced every 100 hours to keep it
functioning as designed.
If the engine has been running, the muffler will be hot. Allow it to
cool before servicing the spark arrester.
Spark Arrester Cleaning & Inspection
1. Remove the spark arrester:
HIGH-MOUNT MUFFLER TYPE: Remove the special screw from
the muffler and remove the spark arrester.
SPARK ARRESTER
SIDE-MOUNT MUFFLER TYPE: Remove the 6 mm flange bolts
from the muffler protector and remove the muffler protector.
Remove the special screws from the spark arrester and remove
the spark arrester from the muffler.
SPARK ARRESTER
6 mm FLANGE BOLTS (4)
2. Use a brush to remove carbon deposits from the spark arrester
screen. Be careful to avoid damaging the screen.
The spark arrester must be free of breaks and holes. Replace the
spark arrester if it is damaged.
HIGH-MOUNT MUFFLER TYPE
3. Install the spark arrester and muffler protector in the reverse
order of disassembly.
30
MUFFLER
SPECIAL
SCREW
MUFFLER
SPECIAL SCREWS (3)
MUFFLER PROTECTOR
SIDE-MOUNT MUFFLER TYPE
SPARK ARRESTER SCREEN
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