MAINTENANCE HC-2020
32 X7702245301
© 11/19 ECHO Incorporated
Exhaust Port Cleaning
Level 2.
1. Remove spark plug lead from
spark plug, and remove muffler
cover.
2. Place piston at top dead center.
Remove muffler (A) and heat
shield (B).
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.
3. Use a wood or plastic scraping
tool (not included) to clean
deposits from cylinder exhaust
port.
4. Inspect heat shield, and replace
if damaged.
5. Install heat shield, muffler, and
eye plate.
6. Tighten muffler mounting bolts
(or nuts) to 90-110 kgf•cm (80-
95 in•lbf).
7. Install muffler cover and attach
spark plug lead.
8. Start engine, and warm to
operating temperature.
9. Stop engine, and re-tighten mounting bolts (or nuts) to specifications.
Parts Required: As needed: Heat Shield
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