Starting the Engine (continued)

WARNING!

The cutting attachment may rotate when the engine is started!

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.)

Open

Figure 18

WARNING!

Never start the engine from the oper- ating position.

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.

When the Engine Starts...

nAfter the engine starts, allow the en- gine to warm up at idle 2 or 3 minutes before operating the unit.

nAfter the engine is warm, pick

up the unit and clip on the shoulder strap. See page 12.

nAdvancing 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).

Stopping the Engine

OFF

Idle the engine briefly before stopping (about 2 minutes), then slide the ignition switch to the “O” (Engine OFF) position.

Figure 19

C242

 

Adjusting Engine Idle

 

Idle Adjusting

Figure 20

Screw

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 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.

11

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Shindaiwa 81644 manual Stopping the Engine, Adjusting Engine Idle, Cutting attachment may rotate when the engine is started
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81644 specifications

The Shindaiwa 81644 is a remarkable piece of equipment designed for professionals in landscaping and agriculture. Renowned for its durability and performance, this model is an essential tool for anyone in need of a reliable, high-efficiency solution for their yard care and maintenance projects.

One of the standout features of the Shindaiwa 81644 is its powerful engine. The unit is equipped with a robust 25.4 cc 2-stroke engine that delivers an impressive power-to-weight ratio, ensuring efficient operation without compromising on performance. This kind of engine is designed for easy starting and provides a reliable output that allows users to tackle even the most challenging tasks with ease.

Another key characteristic of the Shindaiwa 81644 is its lightweight design. Weighing in at approximately 7.9 lbs, this model is designed to reduce operator fatigue, allowing for extended use without added strain. The ergonomic handle further enhances comfort, enabling a natural grip and offering better control during operation.

Technologically, the Shindaiwa 81644 incorporates advanced anti-vibration technology. This feature minimizes vibrations during use, ensuring a smoother experience while reducing the risk of operator fatigue. Additionally, the unit includes an adjustable throttle, allowing users to optimize their cutting speed based on the specific job at hand.

The durability of the Shindaiwa 81644 is another highlight. Constructed with high-quality materials, this equipment is built to withstand the rigors of regular use in various weather conditions. Its fuel-efficient engine also represents Shindaiwa's commitment to sustainability, minimizing environmental impact while maximizing performance.

For convenience, the Shindaiwa 81644 is designed with an easy-to-access air filter and spark plug, simplifying maintenance. This ensures that operators can keep their equipment in top condition with minimal effort.

In summary, the Shindaiwa 81644 combines power, efficiency, and user-friendly features, making it one of the most sought-after options for professionals looking to enhance their landscaping tools. Whether for commercial or personal use, this model stands out as a reliable choice that meets the demands of any outdoor maintenance project.
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