Echo shindaiwa PB-8010 - Adjusting Carburetor; Checking and Adjusting Throttle Cable

FUEL SYSTEM
PB-8010, EB810
35
4-13 Adjusting carburetor (continued)
4-13-3 Adjusting carburetor
1. Start and run engine for 30 seconds at idling
and then run for 180 seconds at WOT.
2. Adjust L mixture needle (A) using Short type
small D-shaped tool (E) to reach maximum engine
speed just before lean drop off.
3. Set idle speed to 2,900 r/min by turning Throttle
adjust screw (C). The engine speed should be
stable at 2,900 +/- 50 r/min.
4. Turn L mixture needle (A) counterclockwise to
reduce idle speed 400 r/min to set idle speed at
2,500 r/min. The idle speed range is 2,300 - 2,700
r/min.
NOTE:
Engine speed must be allowed to stabilize
a minimum of 20 seconds after each adjustment
of L mixture needle to assure accurate tachometer
readings.
5. Adjust H mixture needle (B) to obtain maximum
WOT engine speed just before lean drop off using
Short type small D-shaped tool (E).
6. Turn H mixture needle (B) counterclockwise to
reduce WOT engine speed 60 - 80 r/min.
7. Stop and restart engine, and verify engine idle
speed ranges from 2,300 to 2,700 r/min, and WOT
engine speed is over 7,500 r/min.
When final adjustment is completed, the engine
should idle, accelerate smoothly, and attain WOT
per above specifi cation.
4-14 Checking and adjusting throttle cable
1. Confi rm throttle plate (A) contacts tip of Throttle
adjust screw (B) when throttle trigger is in idling
position.
2. Make sure carburetor becomes WOT (wide open
throttle) when throttle trigger is fully squeezed.
3. If result of 1 and 2 is not suffi cient, loosen nut (C)
and adjust nut (D) to obtain correct position and
movement.
4. After confi rming throttle cable inner wire moves
smoothly when throttle trigger is squeezed, fasten
nut (C) to fi x outer throttle cable.
NOTE:
Throttle cable can be adjusted by turning
bolt (J) in handle grip.
A
B
C
E
C
A
B
D
J