Carburetor Adjustment - Echo CS-2511T Operator's Manual

CS-2511T
MAINTENANCE PROCEDURE NOTES:
1 Low evaporative fuel tanks DO NOT require regular maintenance to
maintain emission integrity.
2 Model dependent
* Replacement is recommended based on the finding of damage or wear
during inspection.

Carburetor Adjustment

Every unit is run at the factory and
the carburetor is set in compliance
with Emission Regulations. In
addition, the carburetor is equipped
with "H" (High Speed) and ("L" (Low
Speed) needle adjustment limiters
that prevent settings outside
acceptable limits.
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 1,100 feet above sea level (ASL) (96.0 kPa). To
maintain proper engine operation above 1,100 feet ASL the carburetor may
need to be adjusted by an authorized 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.
1. Before adjusting carburetor clean or replace air filter and muffler "Spark
Arrestor Screen".
2. Make sure the bar and chain are properly adjusted.
3. Start engine and run several minutes to bring to operating temperature.
Flash choke twice during warm-up to clear any air from the fuel system.
X7503332503
© 11/19 ECHO Incorporated
MAINTENANCE
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