MAINTENANCE
T302X
46
X7502350302
© 10/19 ECHO Incorporated
Exhaust Port Cleaning
Level 2.
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.
1.
Remove spark plug lead from
spark plug, and remove muffler
cover.
2.
Place piston at top dead center.
Remove muffler (A).
3.
Use a wood or plastic scraping
tool to clean deposits from
cylinder exhaust port (B).
4.
Inspect heat shield, and replace
if damaged.
5.
Install heat shield and muffler.
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
A
B