MAINTENANCE PPF-225
38 X7507820701
© 09/19 ECHO Incorporated
3. Use a wood or plastic
scraping tool to clean deposits
from cylinder exhaust port (C).
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 90-110 kgf•cm (80-95
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
Level 2.
Engine Break-In
New engines must be operated a minimum duration of two tanks of fuel
break-in before carburetor adjustments can be made. During the break-in
period your engine performance will increase and exhaust emissions will
stabilize. Idle speed can be adjusted as required.
High Altitude Operation
This engine has been factory adjusted to maintain satisfactory starting and
durability performance up to 330 m (1100 ft.) above sea level (ASL) (96.0
kPa). To maintain proper engine operation and emission compliance above
330 m (1100 ft.) ASL the carburetor may
need to be adjusted by an
authorized ECHO service dealer.
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