Honda EMS4000 Owner's Manual page 31

Spark arrester maintenance
m If the generator 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. Loosen the bolts and nuts and remove the muffler.
2. Loosen two Bmm bolts to remove the exhaust pipe.
3. Check the muffler exhaust port for carbon deposits; clean if necessary.
4. Remove the spark arrester from the muffler.
Clean the screen with a stainless steel wire brush and inspect the mesh for
damage.
Replace the spark arrester if there are any holes or breaks in the screen.
5. Install the spark arrester in the muffler.
6. Install the muffler and gasket and tighten the bolts and nuts securely.
8mm NUTS
EXHAUST PIPE
I
,"FFLE/
" 6mm BOLTS
PROTECTOR
SPARK
ARRESTER
8mm GOLTS
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