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Starting the Engine (continued)
WARNING!
The cutting attachment may rotate
when the engine is started!
6. When the engine starts, slowly move the
choke lever to the "OPEN" position. See
Figure 19. (If the engine stops after the
initial start, close the choke and restart.)
Figure 19
Stopping the Engine
IGNITION SWITCH OFF
IGNITION
SWITCH
OFF
Figure 20
Engine Idle Adjustment
The engine must return to idle speed
whenever the throttle lever is released.
Idle speed is adjustable, and must be set
low enough to permit the engine clutch to
disengage the cutting attachment when the
throttle is released.
Idle Speed Adjustment
WARNING!
The cutting attachment must NEVER
rotate at engine idle! If the idle speed
cannot be adjusted by the procedure
described here, have the unit inspected
at an authorized Shindaiwa dealer.
1. Place the unit on the ground, then start
the engine and allow it to idle for 2-3
minutes until warm.
Never start the engine from the
operating position.
7. Operating the throttle will automatically
disengage the fast idle setting.
If the engine fails to start after several
attempts with the choke in the closed posi-
Choke Control
tion, the engine may be flooded with fuel.
(open position)
If flooding is suspected, move the choke
lever to the open position and repeatedly
pull the recoil starter to remove excess
fuel and start the engine. If the engine still
fails to start, refer to the troubleshooting
section of this manual.
Idle the engine briefly before stopping
(about 2 minutes), then slide the ignition
T272/T272X
switch to the "O" (OFF) position.
See Figure 20.
27029
Figure 21
2. If the attachment rotates when the
engine is at idle, reduce the idle speed
by turning the idle adjustment screw
counter-clockwise. See Figure 21.
3. If a tachometer is available, the engine
idle speed should be final adjusted to
3,000 (±250) RPM (min
WARNING!
IMPORTANT!
Idle
Adjusting Screw
).
-1
When the Engine Starts...
After the engine starts, allow the engine
to warm up at idle 2 or 3 minutes before
operating the unit.
After the engine is warm, pick up the
unit and clip on the shoulder strap or
harness if so equipped. See page 12.
Advancing the throttle makes the cut-
ting attachment turn faster; releasing
the throttle permits the attachment to
stop turning. If the cutting attachment
continues to rotate when the engine
returns to idle, carburetor idle speed
should be adjusted (see below).
NOTE:
Carburetor fuel mixture adjustments are pre-
set at factory on units with emission control
systems and cannot be serviced in the field.
11
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