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Starting the engine (continued), Stopping the engine adjusting engine idle – Shindaiwa 81643 User Manual

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Starting the Engine (continued)

WARNING!

Never start the engine from

the operating position.

WARNING!
The cutting attachment may

rotate when the engine is started!

When the Engine Starts...

n

After the engine starts, allow the engine

to warm up at idle or 3 minutes before

operating the unit.

n

After the engine is warm, pick

up the unit and clip on the shoulder

strap if so equipped. See page 11.

n

Advancing the throttle makes the

cutting 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 “Adjusting

Engine Idle” below).

IMPORTANT!

If the engine fails to start after several

attempts with the choke in the closed

position, the engine may be flooded

with fuel. 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.

5. When the engine starts, slowly move the

choke lever to the “OPEN” position. See

Figure 18. (If the engine stops after the

initial start, close the choke and restart.)

Figure 18

Open

Idle the engine briefly before stopping

(about minutes), then slide the ignition

switch to the “O” (Engine OFF) position.

Stopping the Engine

Adjusting Engine Idle

Figure 19

Figure 20

Idle Adjusting

Screw

OFF

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.

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, return the

trimmer to your Shindaiwa dealer for

inspection.

1. Place the trimmer on the ground, then

start the engine, and then allow it to idle

-3 minutes until warm.

. If the attachment rotates when the

engine is at idle, reduce the idle speed

by turning the idle adjustment screw

counter-clockwise. See Figure 0.

3. If a tachometer is available, the engine idle

speed should be final adjusted to 3,000

(±50) rpm (min

-1

).

4. Carburetor fuel mixture adjustments are

preset at factory and cannot be serviced

in the field.