Exhaust System - Echo SRM-225 Operator's Manual

MAINTENANCE
4. Use brush to remove dirt from the cylinder fins.
5. Remove ignition wires from clip for cleaning.
6. Remove grass and leaves from the grid between the recoil
starter and fuel tank.
7. Assemble components in reverse order.

Exhaust System

Spark Arrestor Screen
Level 2.
Parts Required: Spark Arrestor Screen, Gasket
1. Remove engine cover (B).
2. Place piston at Top Dead Center (TDC) to prevent
carbon/dirt from entering cylinder.
3. Remove spark arrestor screen cover (C), gaskets (D), (E),
and screen (F), from muffler body.
4. Clean carbon deposits from muffler components.
Note: When cleaning carbon deposit, 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.
Exhaust Port Cleaning
Level 2.
Parts Required: As needed: Heat Shield
1. Remove spark plug lead from spark plug, and remove
engine cover.
2. Place piston at top dead center. Remove muffler (A) and
heat shield (B).
3. Use a wood or plastic scraping tool to clean deposits from
cylinder exhaust port.
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F
E
D
C
B
A
© 03/2013 ECHO Inc.
SRM-225
X7722271108