Starting the Engine (continued)
1. Hold the outer tube firmly with your
left hand and use
your right hand
to pull the starter
handle slowly
upward until you
feel the starter
engage.
2. To start the
trimmer, pull the
Figure 13
starter handle
upward rapidly.
IMPORTANT!
The recoil starter will provide trouble
free operation if the following recom-
mendations are observed:
Always engage the starter before
attempting to start the engine.
Never pull the starter cord to its
full length.
Always rewind the starter cord
slowly.
After the engine starts or fires–
1. Open the choke by moving the choke
lever down (toward the fuel tank).
Stopping the Engine
Figure 15
Engine Idle Adjustments
Checking and Adjusting
The engine must return to idle speed
whenever the throttle lever is released.
Engine idle speed is adjustable and must
be properly set to permit the clutch
shoes to disengage from the clutch
drum. The correct engine idle speed
also provides air flow to maintain engine
cooling.
Idle Adjustment Procedure
1. Start the engine and allow it to idle
for two to three minutes until it
warms up.
2. If the cutting attachment rotates at
engine idle speed, turn the idle
speed adjustment screw counter-
clockwise until the cutting attachment
stops turning.
2. If the engine stops, repeat the starting
procedure previously described.
3. When the engine starts, clear excess
fuel from the combustion area by rev-
ving the engine several times with the
throttle lever.
WARNING!
The trimmer head will rotate as the
engine accelerates!
IMPORTANT!
Operating the throttle will automatically
disengage the fast idle setting.
If the engine does not start–
Repeat the appropriate starting proce-
dures for a hot or cold engine. If the en-
gine still fails to start, use the procedure
for "Starting a Flooded Engine."
Starting a Flooded Engine
1. Disconnect the spark plug boot and
unscrew the spark plug using the
spark plug wrench provided with
the unit (turn counterclockwise to
remove).
1. Let the engine idle for a period of two
to three minutes to allow engine to
cool and temperature to stabilize.
2. Slide the ignition switch to the "O"
(STOP) position.
3. If a tachometer is available, the engine
idle speed should be final-adjusted to
3,000 RPM ±250 RPM (min
WARNING!
The cutting attachment must NEVER
rotate at engine idle speeds! If the
idle speed cannot be adjusted by
the above procedure, return the
trimmer to your Shindaiwa dealer for
inspection.
CAUTION!
Carburetor mixture adjustments are
set at the factory and cannot be
serviced in the field.
2. If the spark plug is fouled with carbon
or coated with fuel, clean or replace
the spark plug as necessary. For
spark plug specifications and gapping
procedure, refer to page 11.
3. Crank the
engine several
times to clear
excess fuel from
the combustion
chamber, mak-
ing sure that the
choke is open
and the ignition
switch is in the
"O" (STOP) position.
CAUTION!
Incorrect spark plug installation can
result in serious engine damage!
4. Install the spark plug and tighten
same using the spark plug wrench
provided with the unit. If a torque
wrench is available, torque the spark
plug to 148-165 inch-pounds (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.
).
-1
...to reduce
idle speed
Figure 16
Figure 14
...to increase idle
speed
Idle
Adjustment
Screw
9