STARTING A FLOODED ENGINE

Flooded engines can be started by placing the ON/OFF switch in the ON position and the choke lever in the OFF CHOKE position and engaging the throttle lock as directed in the STARTING A COLD ENGINE section; then, pull the rope to clear the engine of excess fuel. Starting could require pulling the starter rope many times depending on how badly the unit is flooded. If the unit still doesn’t start, refer to the TROUBLESHOOTING TABLE.

WARNING: Ensure ON/OFF switch is in the OFF position and disconnect the spark plug before performing maintenance except for carburetor adjustments.

GENERAL RECOMMENDATIONS

The warranty on this unit does not cover items that have been subjected to operator abuse or negligence. To receive full value from the warranty, the operator must maintain unit as instructed in this manual. Various adjust- ments will need to be made periodically to properly maintain your unit.

CHECK FOR LOOSE

FASTENERS AND PARTS

SSpark Plug Boot S Air Filter

S Housing Screws

CHECK FOR DAMAGED OR

WORN PARTS

Contact an authorized service dealer for re- placement of damaged or worn parts.

S ON/OFF Switch -- Ensure ON/OFF switch functions properly by moving the switch to the OFF position. Make sure engine stops; then restart engine and continue.

SFuel Tank -- Do not use unit if fuel tank shows signs of damage or leaks.

INSPECT AND CLEAN UNIT AND LABELS

S Before and after each use, inspect com- plete unit for loose or damaged parts. After each use, clean the unit and labels using a damp cloth with a mild detergent.

SWipe off unit with a clean dry cloth.

CLEAN AIR FILTER

Air Filter

Cover

Air Filter

Screw

Cleaning the air filter:

A dirty air filter decreases engine perform- ance and increases fuel consumption and harmful emissions. Always clean after every 5 hours of operation.

1.Clean the cover and the area around it to keep debris from falling into the carburetor chamber when the cover is removed.

2.Remove parts as illustrated.

NOTE: Do not clean filter in gasoline or other flammable solvent. Doing so can create a fire hazard or produce harmful evaporative emis- sions.

3.Wash the filter in soap and water.

4.Allow filter to dry.

5.Add a few drops of oil to the filter; squeeze filter to distribute oil.

6.Replace parts.

INSPECT MUFFLER AND SPARK ARRESTING SCREEN

NOTE: THE SPARK ARRESTING SCREEN ON THIS UNIT IS NOT SERVICEABLE.

For normal homeowner use, the muffler and spark arresting screen will not require any ser- vice.

After 50 hours of use, we recommend that your muffler be replaced by an authorized service dealer.

CARBURETOR ADJUSTMENT

WARNING: Keep others away when making idle speed adjustments. The blade will be moving during most of this procedure. Wear your protective equipment and observe all safety precautions. When making adjust- ments, use a screwdriver short enough to keep your hands behind the handguard and away from the blade. After making adjust- ments, the blade must not move at idle speed.

The carburetor has been carefully set at the factory. Adjustments may be necessary if you notice any of the following conditions:

SEngine will not idle when the throttle is re-

leased.

SThe blade moves at idle.

Keep others away when making idle speed adjustments. Make adjustments with the unit resting on a level surface free of debris that can be caught in the hedge trimmer blade. Serious injury to the operator and others can occur if the carburetor is not properly ad- justed. Keep all parts of your body away from the blade and muffler.

Idle Speed Adjustment

Allow engine to idle. Adjust speed until engine runs without blade moving (idle too fast) or en- gine stalling (idle speed too slow).

S Turn idle speed screw clockwise to in- crease engine speed if engine stalls or dies.

STurn idle speed screw counterclockwise to decrease engine speed if the blade moves at idle.

WARNING: Recheck the idle speed after each adjustment. The blade must not move at idle speed to avoid serious injury to the operator or others.

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Jonsered HT 2121 Starting a Flooded Engine, General Recommendations, Check for Loose Fasteners and Parts, Clean AIR Filter
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HT 2121 specifications

The Jonsered HT 2121 is a high-performance hedge trimmer that is designed for both professional landscapers and home gardening enthusiasts. Known for its robustness and efficiency, the HT 2121 features a powerful 21cc, 2-cycle engine that delivers efficient cutting performance, allowing users to tackle dense hedges and shrubs with ease.

One of the standout characteristics of the Jonsered HT 2121 is its dual-action cutting blades. The blades are designed to ensure fast and clean cuts, minimizing the effort required by the user. With a blade length of 24 inches, the trimmer provides an impressive reach, making it ideal for handling tall hedges and large areas without the need for frequent repositioning.

The HT 2121 incorporates advanced technology to enhance user experience and reduce fatigue. It features an ergonomic design with a comfortable grip and a well-balanced structure, allowing operators to maneuver it effortlessly during extended use. The lightweight design is particularly beneficial for prolonged trimming sessions, as it reduces strain on the arms and shoulders.

Another important feature of the Jonsered HT 2121 is its easy starting system. The trimmer is equipped with an igniton and fuel system that ensures reliable starting every time. This is especially advantageous for users who may not have experience with two-cycle engines, as it handles starting challenges efficiently.

In terms of durability, the HT 2121 is built to withstand the rigors of outdoor use. The housing is made from high-quality materials that can resist wear and tear, while the cutting blades are designed to last, featuring a precision sharpening process that enhances their longevity.

Additionally, the hedge trimmer is designed with safety in mind. The blade guard and protective features ensure that users can operate the tool safely, reducing the risk of accidents. The HT 2121's low vibration technology also minimizes vibrations during operation, contributing to a more comfortable user experience.

Overall, the Jonsered HT 2121 is a reliable hedge trimmer that combines power, efficiency, and comfort. With its innovative features and user-friendly design, it stands out as a top choice for those looking to achieve a well-manicured garden with minimal effort. Whether it’s for professional landscaping or home gardening, the HT 2121 proves to be an indispensable tool for any gardener.
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