OPERATION

BEFORE STARTING THE ENGINE

CHECK THE OIL

NOTE: The engine was shipped from the factory filled with oil. Check the level of the oil. Add oil as needed. See the engine manufacturer’s instructions for the type of gasoline and oil to use.

1.Make sure the unit is level.

NOTE: Do not check the level of the oil while the engine runs.

2.Check the oil. Follow the procedure in the engine manufactur- er’s instructions.

3.If necessary, add oil until the oil reaches the FULL mark on the dipstick. The quantity of oil needed from ADD to FULL is shown on the dipstick. Do not add too much oil.

CAUTION: A mixture of alcohol (ethanol or methanol) and gasoline (called gasohol), will attract moisture and cause acid deposits during storage. While the unit is in storage, the acids in the fuel can damage the fuel system.

To prevent engine problems with the fuel system, empty the fuel system before storage of 30 days or longer as follows.

1.Drain the fuel tank.

2.Start the engine. Let the engine run until the fuel lines and the carburetor are empty.

3.After storage, make sure you use fresh fuel. See the storage instructions for additional information.

4.Never use engine cleaner or carburetor cleaner in the fuel tank or permanent damage can occur.

ADD GASOLINE

WARNING: Always use a safety gasoline container. Do not smoke when adding gasoline to the fuel tank. Do not add gasoline when you are inside an enclo- sure. Before you add gasoline, stop the engine and let the engine cool for several minutes.

Fill the

fuel tank with regular

Fuel Tank

unleaded gasoline. Do not use

Full

premium

unleaded gasoline.

Make sure the gasoline is fresh

 

and clean. Leaded gasoline will

 

increase

deposits and shorten

 

the life of the valves.

CARBURETOR

The factory settings for the carburetor are for most conditions. If the engine is operated under the following conditions, you can adjust the carburetor mixture. To adjust the carburetor, see the engine manufacturer’s instructions.

1.The engine has a loss of power or does not run smooth.

2.A change from summer to winter operation.

3.A 40 degree change in the operation temperature. The carbure- tor was adjusted at 80 degrees at the factory.

4.The engine is operated above 4,000 feet.

HOW TO START THE ENGINE

WARNING: The electrical system has an operator presence system that includes a sensor switch for the seat. These components tell the electrical system if the operator is sitting on the seat. This system will stop the engine when the operator leaves the seat if the blade rotation control is engaged or if the trans- mission is engaged. For your protection, always make sure this system operates correctly.

NOTE: The engine will not start unless you depress the brake pedal or engage the parking brake and move the blade rotation control to the DISENGAGE position.

1.Push the brake pedal completely forward. Keep your foot on the pedal.

2.Make sure the blade rotation control is in the DISENGAGE position.

3.Move the throttle control completely forward to the CHOKE or FAST position. Some models have a separate choke knob. Pull the choke knob to the full CHOKE position.

4.Turn the ignition key to the START position. Release the key when the engine starts.

NOTE: If the engine does not start after four or five tries, see the TROUBLE SHOOTING CHART.

5.Slowly move the throttle control to the SLOW position.

6.Let a cold engine run for several minutes. Begin work when the engine is warm. To start a hot engine, move the throttle control to a position between FAST and SLOW.

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Murray 425603x99A manual Before Starting the Engine, Carburetor, HOW to Start the Engine
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425603x99A specifications

Murray 425603x99A is a significant advancement in the field of outdoor power equipment, combining innovative technologies with user-centric features to deliver an exceptional performance. This model is primarily designed for tackling heavy-duty landscaping tasks with efficiency and ease, making it a top choice among both professional landscapers and avid gardeners.

One of the standout features of the Murray 425603x99A is its powerful engine. Equipped with a robust four-stroke engine, this model offers high torque and reliable power, ensuring that it can handle challenging terrains and thick underbrush without faltering. The engine is not only powerful but also designed with fuel efficiency in mind, allowing users to complete more tasks on less fuel, which is both cost-effective and environmentally friendly.

The design of the Murray 425603x99A emphasizes user comfort and control. Its ergonomic handlebar system provides a comfortable grip and reduces vibrations, minimizing fatigue during extended periods of use. The adjustable height feature allows operators to customize the machine to suit their specific working conditions and personal preferences, enhancing overall user experience.

In terms of cutting technology, the Murray 425603x99A comes with a precision cutting deck that ensures clean and even cuts across various grass types. The deck’s design promotes excellent grass discharge performance, making it easy to manage clippings while maintaining a pristine lawn appearance. Additionally, the mower features multiple cutting height adjustments, providing versatility from a low trim to a more substantial grass length.

Safety is a critical consideration in the design of the Murray 425603x99A. It includes several safety features, such as an automatic shut-off function that engages when the operator releases the handle, preventing accidental starts. The sturdy construction of the mower also adds to its durability, ensuring that it can withstand the rigors of frequent use.

Moreover, the Murray 425603x99A is compatible with a range of accessories, allowing for personalized modifications to its functionality. Users can equip it with baggers, mulchers, and other attachments to enhance its versatility across different tasks.

Overall, the Murray 425603x99A stands out as a well-engineered and dependable outdoor power equipment choice. Its combination of power, precision, and thoughtful design features make it an excellent investment for anyone seeking durability and performance in their landscaping endeavors. Whether for commercial or residential use, this model promises to deliver results that exceed expectations.
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