MAINTENANCE
HCS-3020 4020
32
X7702243801
© 03/2019 ECHO Inc.
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 (D) and heat
shield (E).
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.
4.
Inspect heat shield, and replace
if damaged.
5.
Install heat shield and muffler.
6.
Tighten muffler mounting bolts
(or nuts) to 70-80 kgf•cm (60-70
in•lbf).
7.
Install engine 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
D
E
