Shindaiwa 81644 User Manual

11

Starting the Engine (continued)

 

WARNING!

Never start the engine from the oper-

ating position.

 

WARNING!

The cutting attachment may rotate 

when the engine is started!

n

  After the engine starts, allow the en-

gine to warm up at idle 2 or 3 minutes 

before operating the unit. 

n

  After the engine is warm, pick  

up the unit and clip on the shoulder 

strap. See page 12.

n

  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 "Adjusting 

Engine Idle" below).

IMPORTANT!

If the engine fails to start after several at-

tempts with the choke in the closed posi-

tion, 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.)        

Idle the engine briefly before stopping 

(about 2 minutes), then slide the ignition 

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

Stopping the Engine

Adjusting Engine Idle

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.

 

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 

2-3 minutes until warm.

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 20.

3.  If a tachometer is available, the engine idle 

speed should be final adjusted to 3,000 

(±250) RPM (min

-1

).

4.  Carburetor fuel mixture adjustments are 

preset at factory and cannot be serviced 

in the field.

OFF