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EB790/RT
High Altitude Operation
This engine has been factory adjusted to maintain satisfactory starting,
emission, and durability performance up to 335 m (1,100 ft.) above sea
level. To maintain proper engine operation and emission compliance above
335 m (1,100 ft.) ASL the carburetor may need to be adjusted by an
authorized service dealer.
If the engine is adjusted for operation above 335 m (1,100 ft.) above
sea level, the carburetor must be re-adjusted when operating the
engine below 335 m (1,100 ft.) above sea level, otherwise severe
engine damage may result.
Level 2.
Parts required: None.
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 dealer.
Idle Adjustment
Before adjustment make sure that:
• Air filter is clean and properly installed.
• Spark arrester screen and muffler are free of carbon.
• Blower pipes are installed.
1.
Start engine, run at idle for one minute.
2.
Complete warm up by running at full throttle for 5 minutes, operating
choke twice to clear air from carburetor chambers.
X7501201900
© 10/23 ECHO Incorporated
MAINTENANCE
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