HCS-2810 / 3810 MAINTENANCE
X7702248300 31
© 09/19 ECHO Incorporated
1. Remove spark plug lead
from spark plug, and remove
engine cover.
2. Place piston at top dead
center. Remove muffler and
heat shield.
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.
Carburetor Adjustment
The blades must not move at idle, otherwise serious personal
injury may result. Periodic carburetor adjustment may be
necessary to assure blades do not move at idle. If blades move,
readjust carburetor according to these instructions, or see your
ECHO Dealer.
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