Honda GD320 Owner's Manual page 27

5. Spark arrester maintenance (Equipped type only)
m
The muffler becomes very hot during operation and remains
hot for a while after the engine stops. Be careful not to touch the muffler
while it is hot. Allow it to cool before proceeding.
The spark arrester must be serviced every 100 hours to maintain its
efficiency.
1. Remove the three 8 mm nuts and 8 mm bolt and remove the muffler.
2. Remove the three 8 mm nuts and remove the spark arrester (be careful
not to damage the spark arrester screen).
3. Use a wire brush to remove carbon deposits from the spark arrester
screen.
NOTE: Inspect the spark arrester screen for holes or tears. Replace it if it
is damaged.
SPARK ARRESTER
8 mm NUTS (
EXHkJST PIPE
8 mm NUTS (3)
MUFFLER 8 mm BOLT
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