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Exhaust system, Spark arrestor screen, Exhaust port cleaning – Echo HC-152 User Manual

Page 23: Hc-152 maintenance

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HC-152

MAINTENANCE

X7532249501

23

© 4/2013 ECHO Inc.

Exhaust System

Spark Arrestor Screen

Level 2.

1. Remove spark plug lead.
2. Remove engine cover (A) and muffler cover (B).
3. Place piston at Top Dead Center (TDC) to prevent

carbon/dirt from entering cylinder.

4. Remove exhaust guide (C), gasket (D), and screen (E) from

muffler body.

5. Clean carbon deposits from muffler components.
Note: When cleaning carbon deposits, be careful not to

damage the catalytic element inside muffler.

6. Replace screen if it is cracked, plugged, or has holes

burned through.

7. Assemble components in reverse order.

Exhaust Port Cleaning

Level 2.

1. Remove spark plug lead from spark plug, and remove

engine cover.

2. Place piston at top dead center. Remove muffler (F) and

heat shield (G).

3. Use a wood or plastic scraping tool to clean deposits from

cylinder exhaust port.

Never use a metal tool to scrape carbon from the exhaust port. Do not scratch the cylinder or piston when
cleaning the exhaust port. Do not allow carbon particles to enter the cylinder.

Parts Required:

Spark Arrestor Screen, Gasket

Parts Required:

As needed: Heat Shield

A

B

C

D

E

G

F