CS-3410 MAINTENANCE
X7503361801 51
© 10/23 ECHO Incorporated
Exhaust Port Cleaning
Level 2.
Parts required: Muffler Gasket (as required).
1. Remove cylinder cover and
remove spark plug lead.
2. Place piston at top dead center.
3. Remove spark arrester cover
and screen.
4. Remove muffler screws (A) and
muffler body (B) and gasket (C).
Check parts for wear or damage,
and replace if necessary.
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.
5. Use a wood or plastic scraping
tool to clean deposits from
cylinder exhaust port.
6. Install muffler. Tighten muffler
mounting bolts (or nuts) to
7 - 9 N•m (60- 80 lbf•in).
7. Install cylinder cover and attach
spark plug lead.
8. Start engine, and allow unit to
warm up at idle for several
minutes.
9. Stop engine, and re-tighten
mounting bolts (or nuts) to
7 - 9 N•m (60-80 lbf•in).
10. Install guide bar and chain. Adjust chain tension.
11. Start engine and check for exhaust leaks between muffler and cylinder
head. Stop engine if leak is found and correct problem before operating
chain saw.
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