Husqvarna 6521RS owner manual Before Starting Engine, To Stop Engine, To Start Engine

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SIMPLE STEPS TO REMEMBER WHEN CONVERTING YOUR LAWN MOWER

FOR MULCHING -

1.Rear mulcher plug installed.

2.Mulcher door closed.

FOR REAR BAGGING -

1.Rear mulcher plug removed.

2.Grass catcher installed.

3.Mulcher door closed.

FOR SIDE DISCHARGING -

1.Rear mulcher plug installed.

2.Discharge deflector installed.

CAUTION: Do not run your lawn mow- er without mulcher plug, clipping deflector or approved grass catcher in place. Never attempt to operate the lawn mower with the rear door removed or propped open.

BEFORE STARTING ENGINE

ADD OIL

Your lawnmower is shipped without oil in the engine. For type and grade of oil to use, see “ENGINE” in the Maintenance section of this manual.

CAUTION: DO NOT overfill engine with oil, or it will smoke heavily from the muffler on startup.

1.Be sure lawnmower is level.

2.Remove oil dipstick from oil fill spout.

3.You receive a container of oil with the unit. Slowly pour the entire container down the oil fill spout into the engine.

NOTE: Initial oil fill requires only 18 oz. due to residual oil in engine from the manufacturers 100% quality testing. When changing oil you may need 20 oz.

4.Insert and tighten dipstick.

IMPORTANT:

• Check oil level before each use. Add oil if needed. Fill to full line on dipstick.

• Change the oil after every 25 hours of operation or each season. You may need to change the oil more often under dusty, dirty conditions. See “TO CHANGE ENGINE OIL” in the Mainte- nance section of this manual.

ADD GASOLINE

• Fill fuel tank to bottom of tank fi ller neck. Do not overfi ll. Use fresh, clean, regular unleaded gasoline with a minimum of 87 octane. Do not mix oil with gasoline. Pur- chase fuel in quantities that can be used

within 30 days to assure fuel freshness. CAUTION: Wipe off any spilled oil or fuel. Do not store, spill or use gasoline near an open flame.

CAUTION: Alcohol blended fuels (called gasohol or using ethanol or metha- nol) can attract moisture which leads to separation and formation of acids during storage. Acidic gas can damage the fuel system of an engine while in storage. To avoid engine problems, the fuel system should be emptied before storage of 30 days or longer. Empty the gas tank, start the engine and let it run until the fuel lines and carburetor are empty. Use fresh fuel next season. See Storage Instructions for additional information. Never use engine or carburetor cleaner products in the fuel tank or permanent damage may occur.

Engine oil cap

Gasoline filler cap

Primer

TO STOP ENGINE

•To stop engine, release operator pres- ence control bar.

TO START ENGINE

NOTE: Due to protective coatings on the engine, a small amount of smoke may be present during the initial use of the product and should be considered normal.

1.To start a cold engine, push primer three (3) times before trying to start. Use a firm push. This step is not usually necessary when starting an engine which has already run for a few minutes.

2.Hold operator presence control bar down to the handle and pull starter handle quickly. Do not allow starter rope to snap back.

NOTE: In cooler weather it may be necessary to repeat priming steps. In warmer weather over priming may cause flooding and engine will not start. If you do flood engine, wait a few minutes before attempting to start and do not repeat priming steps.

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Contents Rotary Lawn Mower Table of Contents Safety RulesIV. Safe Handling of Gasoline General ServiceIII. Children Do notWarranty Limited WarrantyProduct Specifications AccessoriesHOW to SET UP Your Mower Assembly / PRE-OPERATIONToremovemowerfromcarton Know Your Lawn Mower Meets Cpsc Safety RequirementsOperation Starting a cold engineHOW to USE Your Lawn Mower To Convert Mower To Empty Grass CatcherSide Discharging Rear BaggingTo Stop Engine Before Starting EngineTo Start Engine Mowing Tips Mulching Mowing TipsGeneral Recommendations MaintenanceLubrication Chart Before Each USELawn Mower Muffler EngineAIR Filter Spark PlugRear Deflector Service and AdjustmentsCleaning To Remove Drive BeltCarburetor To Adjust HandleStorage HandleFuel System Problem Cause CorrectionOther Engine OILBelt off of pulley Check/reinstall drive belt Qualified service centerCatcher not venting air Clean grass catcher Worn, bent or loose blade Replace blade. TightenRepair Parts KEY Part Page KEY Part Description Page 532 41 37-72 Rev 03.27.07 by

6521RS specifications

The Husqvarna 6521RS is a versatile and powerful lawn mower, designed for homeowners who seek an efficient tool for their yard maintenance tasks. This model stands out with its exceptional features, technologies, and characteristics, making it a popular choice for both novice and experienced users.

At the heart of the Husqvarna 6521RS is its robust 163cc engine, which delivers strong power and performance while ensuring fuel efficiency. The engine is designed to start easily and operate smoothly, providing users with a seamless mowing experience. The mower features a 21-inch steel cutting deck, ensuring a wider cutting path that reduces the time spent mowing, perfect for medium to large sized lawns.

One of the standout features of the 6521RS is its Smart Start technology, which ensures that the mower starts quickly and with minimal effort, allowing users to focus on the task at hand without frustration. This technology works in conjunction with an air purge system that removes air from the carburetor and fuel system, promoting easier engine start-up.

The adjustable cutting height on the Husqvarna 6521RS ranges from 1 inch to 4 inches, allowing users to customize their mowing height to achieve the perfect lawn finish. The easy-to-use lever allows for quick adjustments, accommodating various grass types and seasonal changes.

Additionally, the mower is equipped with a rear-wheel drive system, which enhances its maneuverability and traction. This feature is especially beneficial when navigating around obstacles or mowing on uneven terrain, providing better control and stability.

For added convenience, the Husqvarna 6521RS comes with a foldable handle, making it easy to store the mower in compact spaces. This ergonomic design not only saves space but also ensures comfort during extended use, minimizing user fatigue.

The mower's durable construction is designed to withstand the rigors of frequent use. The robust materials and high-quality components contribute to a longer lifespan, making the 6521RS a worthwhile investment for homeowners.

Overall, the Husqvarna 6521RS combines performance, convenience, and durability, making it ideal for anyone looking to maintain a beautiful lawn with minimal effort. Whether you’re tackling a small patch or a larger yard, this mower is equipped to handle the job efficiently.
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