Gear housing carburetor adjustment, Ea-410 maintenance, Gear housing – Echo EA-410 User Manual

Page 25: Carburetor adjustment

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EA-410

MAINTENANCE

© 10/2013 ECHO Inc.

X7504220703

25

4. Inspect heat shield, and replace if damaged.

5. Install heat shield and muffler.

6. Tighten muffler mounting bolts (or nuts) to 95-130 in•lbf

(110-150 kgf•cm).

7. Attach spark plug lead and install engine cover.

8. Start engine, and warm to operating temperature.

9. Stop engine, and re-tighten mounting bolts (or nuts) to

specifications.

Gear Housing

Level 1.

1. Inspect gear housing for cracks in surface; leaks at joints,

bearings, or seals; or damage of any kind.

If any damage is found, return unit to an authorized Echo dealer
for repair.

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, emission, and durability
performance up to 1,100 feet above sea level (ASL) (96.0 kPa). To maintain proper engine operation and
emission compliance above 1,100 feet ASL the carburetor may need to be adjusted by an authorized ECHO
service dealer.

If the engine is adjusted for operation above 1,100 feet ASL, the carburetor must be re-adjusted when
operating the engine below 1,100 feet ASL, otherwise severe engine damage may result.

Note: Every unit is run at the factory and the carburetor is set in compliance with emission regulations.

Carburetor adjustments, other than idle speed, must be performed by an authorized ECHO dealer.

Parts
Required:

None

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