MAINTENANCE
PB-7910 H/T
42
X7501201800
© 10/23 ECHO Incorporated
Exhaust Port Cleaning
Level 2.
Parts required: Muffler Gasket (as required).
1.
Remove spark plug lead from
spark plug, and remove engine
cover.
2.
Place piston at top dead center.
Remove muffler (A) and muffler
gaskets (B).
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 muffler gasket, and replace if damaged.
5.
Install muffler gasket and muffler.
6.
Tighten muffler mounting bolts (or nuts) to 110-150 kgf•cm
(95-130 lbf•in).
A
B
