Owner's manual

32 X7503320105

MAINTENANCE CS-355T

Exhaust Port Cleaning

Level 2.

1. Remove spark plug cover and remove spark plug.

2. Release chain brake, remove guide bar nuts, sprocket

guard, guide bar, and chain.

3. Remove muffler cover.

4. Place piston at top dead center.

5. Remove muffler. Check parts for wear or damage, and

replace if necessary.

6. 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.

7. Install muffler. Tighten bolts to 7-10 N•m (60-90 in•lbf), but

do not exceed specifications, otherwise damage to bolts

may occur.

8. Connect spark plug lead and replace spark plug cover.

9. Start engine, and allow unit to warm up at idle for several

minutes.

10. Stop engine, and re-tighten muffler bolts to 7-10 N•m (60-90

in•lbf).

11. Install muffler cover.

12. Install guide bar and chain. Adjust chain tension.

13. 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.

Parts Required: As needed: Muffler gasket