Use and Care Manual

MAINTENANCE PB-2520

30 X7501190001

Cleaning Cylinder Fins

Blow compressed air through

crankcase intake grill and discharge

grill at area shown.

Exhaust System

See your dealer for maintenance.

Carburetor Adjustment

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 335 m (1100 ft.) above sea level

(ASL) (96.0 kPa). To maintain proper engine operation and emission

compliance above 335 m (1100 ft.) ASL the carburetor may

need to be

adjusted by an authorized ECHO service dealer.

If the engine is adjusted for operation above 335 m (1100 ft.) ASL, the

carburetor must be re-adjusted when operating the engine below

335 m (1100 ft.) ASL, otherwise severe engine damage may result.

Level 2.

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.

Before adjustment make sure that:

• Air filter is clean and properly installed.

• Spark arrestor screen is free of carbon.

• Blower pipes are installed.