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EB633RT
MAINTENANCE
X7531124908
31
© 04/22 ECHO Incorporated
Exhaust System
Spark Arrester Screen
Level 2.
Parts required: Spark Arrester Screen, Gasket.
Carbon deposits in muffler will cause a drop in engine output and
overheating. Spark arrester screen must be checked periodically.
1. Remove spark plug lead from
spark plug, and remove engine
cover.
2. Remove spark arrester covers
(A), gaskets (B), and spark
arrester screen (C) from
muffler. Replace screen if
plugged with carbon deposits.
Note: When cleaning carbon
deposits, be careful not to
damage the catalytic
element inside muffler.
3. Install spark arrester screen
and cover.
4. Install engine cover and attach spark plug lead.
Exhaust Port Cleaning
Level 2.
Parts required: Heat Shield (as required).
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).
A
A
B
B
C
A
B