10
251022
AH231_28
Cranking The Engine
(continued)
Starting A Flooded Engine
1. Disconnect the spark plug lead and use
the spark plug wrench to remove the
spark plug (turn counter clockwise to
remove). See Figure 21.
2. Slide the ignition switch to the “O”
(STOP) position.
Figure 21
Figure 22
AH231_26
1. Cool the engine by allowing it to idle for
two or three minutes.
2. Slide the ignition switch to the “O” or
STOP position. See Figure 22.
Stopping the Engine
WARNING!
The cutter attachment can continue
moving after the engine is stopped!
CAUTION!
Incorrect spark plug installation can
result in serious engine damage.
If the spark plug is fouled or soaked with
fuel, clean the plug as necessary (for spark
plug gapping specifications see page 12).
4. Reinstall the spark plug and tighten it
firmly. If a torque wrench is available,
torque the spark plug to 148–165 in.-lb
(170–190 kg/cm).
5. Repeat the starting procedure for a
warm engine.
6. If the engine still fails to start, refer to
the troubleshooting section near the end
of this manual.
If The Engine Fails To Start
Repeat the appropriate cranking procedure
(warm or cold engine). If the engine fails to
start after repeated attempts, the engine is
likely flooded.
If the engine does not continue to run,
repeat the appropriate cranking procedure
(warm or cold engine).
When the engine starts, clear excess fuel
from the combustion chamber by revving
the engine several times with the throttle
trigger.
WARNING!
The cutter attachment will engage
and oscillate as the engine starts and
accelerates.
3. Open the choke (Figure 20) and fully
depress the throttle lever with your left
hand, then pull the starter handle rap-
idly with your right hand to clear excess
fuel from the combustion chamber.
WARNING!
The cutter attachment must never
oscillate at engine idle speed. If the
idle speed cannot be adjusted by the
procedures described here, return the
trimmer to your Shindaiwa dealer for
inspection.
Adjusting Engine Idle
Idle Adjusting
Screw
Figure 23
NOTE
This model is equipped with an EPA approved
carburetor with no mixture adjustment.
IMPORTANT!
Use a tachometer, if one is available, to set
engine idle. Standard idle speed is:
2,750 (±250) rpm (min
-1
).
The engine must return to idle speed when-
ever the throttle trigger is released. Idle speed
is adjustable and must be set low enough to
permit the engine clutch to disengage the
cutter attachment when throttle trigger is
released.
Check and Adjust Idle Speed
1. Start the engine and allow it to idle two or
three minutes, or until it warms up.
2. If the cutter attachment rotates at engine
idle, reduce idle speed by turning the
idle adjusting screw counter-clockwise
as necessary. See Figure 23.
3. If the engine is stalling and won’t idle,
increase idle speed by turning the idle
adjustment screw clockwise.
