Honda HHT25S Manual page 41

MAINTENANCE
10. SPARK ARRESTER SERVICE
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 very hot. Allow the
muffler to cool before servicing the spark arrester.
1. Loosen the captive 5 mm hex bolt, and then remove the top
cover.
2. Remove the two (HHT25S) or three (HHT35S) 4 x 6 mm self-
tapping screws from the spark arrester, and remove the spark
arrester from the muffler.
3. 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.
4. Install the spark arrester in the reverse order of removal.
5. Install the top cover and tighten the captive 5 mm hex bolt
.
securely
3-12
4
(commercially available)
5
TOP COVER
MUFFLER
MUFFLER
SPARK
ARRESTER
x
4 6 mm SELF-TAPPING
SCREWS (2 OR 3)
SPARK ARRESTER SCREEN
HHT25S•HHT35S
mm
HEX WRENCH
mm
HEX BOLT