Echo TC-210 - Manual (Page 21)

T
iller
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s
M
anual
21
Level 2.
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.
WARNING
Sharp rotating tines! Do not allow tines to touch anything during
carburetor adjustment. Contact with revolving tines will cause
severe injury.
2. Start engine and run for several minutes to reach operating tem-
perature.
3. Stop engine. Turn HI (A) speed needle CCW (counter clockwise)
to stop. Turn LO (B) speed needle midway between full CCW and
CW (clockwise) stops.
4. Idle Speed Adjustment.
-Start engine and turn idle speed adjustment screw (C), CW until
the tines begin to turn, then turn the screw CCW until tines stop
turning. Turn screw CCW an additional 1/4 turn.
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 hesitates, turn
LO (B) needle CCW an additional 1/8 turn and repeat acceleration.
Continue adjusting until smooth acceleration results.
6. Check HI (A) speed RPM at W.O.T. (Wide Open Throttle). HI
speed RPM should be set to specifications found on "Specifica-
tions" page of this manual.
7. Check idle speed and reset if necessary. If a tachometer is avail-
able, idle speed should be set to the specification found on "Speci-
fications" page of this manual.
WARNING
When carburetor adjustment is completed, tines should not move
at idle, otherwise serious personal injury may result.
A
B
C
NOTE
Every unit is run at the factory and the carburetor is set in com-
pliance with emission regulations. In addition, the carburetor is
equipped with HI (A) and LO (B) needle adjustment limiters that
prevent settings outside acceptable limits.