Echo CS-301 - Manual (Page 20)

20
muffleR spaRk aRRestoR
IMPORTANT
Carbon deposits in muffler will cause a drop in engine
output and overheating. Spark arrestor screen must be
checked periodically.
1. Remove muffler cover.
2. Remove spark arrestor screen cover, gaskets, and
screen from muffler body.
3. Clean carbon deposits from muffler components.
NOTE
When cleaning carbon deposit, be careful not to damage
the catalytic element inside muffler.
4. Replace screen if it is cracked, plugged, or has holes
burned through.
5. Assemble components in reverse order.
CoolinG system CleaninG
• Remove spark plug lead.
• Remove two (2) muffler cover screws and muffler cover.
• Remove four (4) recoil starter housing screws and starter
housing.
• Use a stiff bristle cleaning brush (do not us a metal
brush) to remove dirt from cylinder fins in muffler and
ignition coil areas.
Cylinder Exhaust Port
IMPORTANT
The cylinder exhaust port must be inspected and cleaned
of excess carbon every 3 months or 90 hours of opera-
tion in order to maintain this engine within the emissions
durability period. ECHO strongly recommends that you
return your unit to your ECHO dealer for this important
maintenance service.