Honda Power Products WX15T Manuel De L'utilisateur page 33

4.Spark arrester maintenance (optional parts)
In Europe and other countries where the machinery directive 
2006/42/EC is enforced, this cleaning should be done by your servicing
dealer.
If the engine has been running, the muffler will be very hot. Allow it to
cool before proceeding.
CAUTION:
The spark arrester must be serviced every 100 hours to maintain its
efficiency.
1.Remove the muffler protector by removing the three 5 mm bolts.
2.Remove the spark arrester from the muffler by removing a screw.
(Taking care not to damage the wire mesh.)
NOTE:
Check for carbon deposits around the exhaust port and the spark
arrester, and clean if necessary.
IGNITION SWITCH and
OIL ALERT UNIT
30
MUFFLER
SPARK ARRESTER
MUFFLER PROTECTOR
SCREW
5 mm BOLTS