20
EXHAUST
SYSTEM
Spark Arrestor Screen
Level 2.
Tools required:
3 mm Hex wrench, Cross Head Screwdriver, Soft
metal brush
Parts required:
Screen, Gasket
1. Remove engine cover. See “Cleaning Cooling System” for step by
step instructions.
2. Place piston at Top Dead Center (TDC) to prevent carbon/dirt from
entering cylinder.
3. Remove exhaust guide (A), gasket (B), and screen (C) from muffler
body.
4. Clean carbon deposits from muffler components.
NOTE
When cleaning carbon deposits, be careful not to damage the
catalytic element inside muffler.
5. Replace screen if it is cracked, plugged or has holes burned
through.
6. Assemble components in reverse order.
NOTE
When installing the cylinder cover, be certain the muffler gasket
tabs (D) are locked into the muffler grill slots and the stop switch
lead is seated in the rubber grommet.
D
A
B
C
Cylinder Exhaust Port
Level 3.
IMPORTANT
The cylinder exhaust port must be inspected and cleaned of excess
carbon every 3 months or 90 hours of operation 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.
