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22
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 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 ad-
justed by an authorized ECHO service dealer.
IMPORTANT
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.
Level 2.
Tools required:
Screwdriver, tachometer (Echo P/N 99051130017)
Parts required:
None.
NOTE
Every unit is run at the factory and the carburetor is set in compli-
ance with emission regulations. Carburetor adjustments, other than
idle speed, must be performed by an authorized ECHO dealer.
1. Before adjusting the carburetor, clean or replace the air filter and
spark arrestor screen and install blower pipes.
2. Start engine and run for several minutes to reach operating tem-
perature.
3. Stop engine. Turn red HI speed needle (A) CCW (counter clock-
wise) to stop.
4. Idle Speed Adjustment with tachometer.
•Start engine and turn “idle” speed adjustment screw (B) to idle
RPM found on page 24 “Specifications” section of this manual.
5. Accelerate to full throttle for 2-3 seconds to clear excess fuel from
engine then return to idle. Accelerate to full throttle to check for
smooth transition from idle to full throttle. If engine stops or
stalls after full warm up, return the unit to your authorized ECHO
dealer for repair.
6. Check HI speed RPM at W.O.T. (Wide Open Throttle). HI speed
RPM should be set to specifications found on page 25 “Specifica
-
tions” of this manual.
7. Check idle speed and reset if necessary.
A
b
Содержание ES-210 - 11-09
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