14
Starting a Flooded Engine
Spark
Plug
Spark
Plug
Lead
1. Disconnect the spark plug lead,
then use the spark plug wrench to
remove the spark plug (counter-
clockwise to remove).
See Figure 14.
3. Set the ignition switch to the STOP
position and open the choke. See
Figure 15. Fully depress the
throttle lever with your left hand
and pull the starter handle rapidly
with your right hand several times
to clear excess fuel from the engine
combustion chamber.
Figure 14
Choke
Open
Figure 15
22DH06
STOP
Position
2. If the spark plug is fouled or is
soaked with fuel, clean or replace
the plug as necessary. For spark
plug specifications and gapping
procedure, see page 18.
CAUTION!
Incorrect spark plug installation
can result in serious engine
damage!
4. Replace the spark plug and tighten
it firmly with the spark plug
wrench. If a torque wrench is
available, torque the spark plug to
148-165 inch-lbs (170-190 kg-cm).
5. Repeat the starting procedures for
a warm engine.
6. If the engine still fails to start or
fire, refer to the troubleshooting
chart at the end of this manual.
WARNING!
Move the ignition switch forward to
the STOP position.
OPERATION
15
The engine must return to idle speed
whenever the throttle lever is re-
leased. Idle speed is adjustable, and
must be set low enough to permit the
engine clutch to disengage the
cutters.
Idle Speed Adjustment
WARNING!
The cutters must NEVER oscillate
at engine idle speeds! If the idle
speed cannot be adjusted by the
procedure described here, return
the trimmer to your Shindaiwa
dealer for inspection.
1. Place the unit on the ground, then
start the engine, and then allow it to
idle 2–3 minutes until warm.
2. If the cutters oscillate when the
engine is at idle, reduce idle speed
by turning the idle adjustment
screw counterclockwise. See
Figure 17.
3. If a tachometer is available, the
engine idle speed should be final-
adjusted to 3,000 (
±
250) rpm
(min
-1
).
Adjusting Engine Idle
Idle
Adjustment
Screw
Figure 17
Stopping the Engine
22DH06
Ignition
Switch
Ignition
OFF
1. Cool the engine by allowing it to
idle for 2–3 minutes.
2. Move the ignition switch forward to
the STOP position. See Figure 16.
Figure 16
WARNING!
The cutters can continue oscillat-
ing after the engine is switched off.
OPERATION
Carburetor fuel mixture adjustments
are preset at the factory and cannot be
serviced in the field.
NOTE:
