9 Common Husqvarna Lawn Mower Problems & Solutions (2022)

You did your research and chose Husqvarna as the best mower for you and your yard. Husqvarna is a well-known brand with good dealership support.

Now that you are having problems with it, you are second guessing your choice. You shouldn’t. No matter what type or brand of mower you buy, you will develop problems.

I’m going to go through the most common type of problems you may be experiencing with your Husqvarna. You can find more detailed information to troubleshoot and repair these problems by following the links in each section.

9 Common Husqvarna Lawn Mower Problems & Solutions (1)

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Follow all safety instructions provided in your equipment operators manual prior to diagnosing, repairing or operating. Consult a professional if you don’t have the skills, knowledge or are not in the condition to perform the repair safely.

(Video) Husqvarna Lawn Tractors: Problem Solving

The most common Husqvarna lawn mower problems are:

  • Husqvarna doesn’t start
  • Husqvarna dies while mowing
  • Husqvarna is smoking
  • Husqvarna has a weak hydrostatic transmission
  • Husqvarna won’t drive straight or steer correctly
  • Husqvarna won’t move
  • Husqvarna is shaking or vibrating
  • Husqvarna is cutting uneven
  • Husqvarna is leaking gas

Husqvarna Mower Problem 1: Mower Won’t Start

Your Husqvarna mower may not start because the engine is not able to get the air or fuel it needs to run due to a restriction in the air or fuel system. A bad battery, loose terminals, failed safety switch and faulty charging system can also prevent your mower from starting.

Detailed information can be found at:
Husqvarna Lawn Mower Won’t Start: Solved!

CauseReason for ProblemSolution
No gas in the fuel tankFuel tank is emptyFill with fresh fuel
Bad or old fuelFuel breaks down overtime making your fuel less efficient and prone to clogging the fuel systemDrain the fuel tank and fill with fresh fuel. Use a fuel additive like Sea Foam to stabilize the fuel and assist with cleaning the fuel system. Use the right fuel.
Faulty or clogged fuel capThe vent in the cap can get clogged causing your tank to form a vacuum restricting fuel flowUse a thin piece of wire to try to clear the clogged vent. Replace the cap if needed.
Bad spark plugExcessively dirty or broken spark plug; bad connection; not gapped correctlyReplace with a new spark plug, secure connections and ensure it is gapped to manufacturer specifications
Plugged air filterDirt and grass can plug the air filter preventing air flowRemove the filter and clean it. Replace the filter if it is in bad condition.
Plugged fuel filterA dirty fuel filter will restrict fuel flowReplace the fuel filter
Bad fuel pumpA failed or leaking fuel pump will no longer create pressure needed to pump fuelReplace the fuel pump
Blocked fuel linesBad fuel deposits and dirt can build up and clog the fuel lines preventing the engine from getting the required fuelUse a carb cleaner and compressed air to clear the clog out of the fuel line. Replace line if necessary.
Dirty carburetorThe carburetor can become dirty and clogged due to bad fuel and ethanol deposits preventing fuel flowClean the components making up the carburetor. Replace if needed.
Bad battery or loose & dirty terminalsA dead battery, loose cables or corroded terminals can cause starting problemsCharge your battery and replace if it won’t hold a charge. Make sure your cables are tight and clean the corrosion from terminals.
Bad safety switchSafety switches is a safety measure that exist to prevent your mower from starting in certain situations. When a switch fails, your mower may not start.Test and replace faulty safety switch
Bad ignition switch or coilYour mower will not start when either the ignition switch or coil is badTest and replace a bad switch
Broken recoilA pull start mower may have a damaged or broke recoil preventing the recoil to initiate starting your engineCheck recoil to see if it can be restrung or broke parts, like the pulley, can be replaced. Replace the recoil assembly if needed.

Husqvarna Mower Problem 2: Mower Loses Power and Dies

Your Husqvarna lawn mower may die while mowing when your fuel system or air filtration system is clogged. This could be from a plugged air filter, dirty carburetor or bad fuel.

You’ll also want to take a look at everything that may be failing to keep your keep your engine cool like dirt and grass packed around the engine or broke cooling fins.

Detailed information can be found at:
Why Your Husqvarna Mower Dies While Mowing

(Video) My Husqvarna mower won't start 12 spots to check

CauseReason for ProblemSolution
Bad fuelFuel breaks down overtime making your fuel less efficient and prone to clogging the fuel system and engine damageDrain the fuel tank and fill with fresh fuel. Use a fuel additive like Sea Foam to stabilize the fuel and assist with cleaning the fuel system
Plugged air filterDirt and grass can plug the air filter preventing air flowRemove the filter and clean it. Replace the filter if it is in bad condition.
Dirty or broken cooling finsCooling fins get packed with dirt, oil and grass not allowing air to effectively cool the engine blockReplace broken fins and clean the cooling fins.
Clogged fuel linesBad fuel deposits and dirt can build up and clog the fuel lines preventing the engine from getting the required fuel.Use a carb cleaner and compressed air to clear the clog out of the fuel line
Dirty carburetorThe carburetor can become dirty and clogged due to bad fuel and ethanol deposits preventing fuel flowClean all of the components making up the carburetor. Replace if needed.

Husqvarna Mower Problem 3: Lawn Mower Smokes

Smoke coming from your Husqvarna mower can be alarming. Smoke can develop when your engine is running too rich and you’re burning off more fuel than air.

Another reason you may notice smoke is when is engine oil is burning off due to an oil leak, insufficient oil level or an internal engine problem.

Detailed information can be found at:
Why Your Husqvarna Lawn Mower is Smoking

CauseReason for ProblemSolution
Plugged air filterDirt and grass can plug the air filter preventing air flowRemove the filter and clean it. Replace the filter if it is in bad condition.
Too much oil in the crankcaseExcessive oil can cause pressure to build in the engine allowing oil to get into the cylinder through the valve trainDrain a little engine oil until it is at the manufacturers recommended oil level.
Engine oil level is too lowLack of oil can increase friction in your engine causing extreme heat.Bring to a small engine repair shop to inspect engine damage. You can try adding oil, but it is often too late to have this fix your engine problem.
Internal problems including the piston ring, valve train or engine gasketInternal engine problems can have a detrimental effect on your mower if they are not caught soon enough and fixed.Bring your Husqvarna to your local small engine repair shop for troubleshooting

Husqvarna Mower Problem 4: Weak Hydrostatic Transmission

Husqvarna lawn mower with a hydrostatic transmission may experience a weak transmission when the hydraulic oil is low or old. A bad hydro belt or pulley can also make your transmission seem like it weak.

Note: Some transmissions are non-serviceable. This means you are unable to change the hydraulic oil because the system is sealed. Bring your mower to your local lawn mower repair shop or Husqvarna dealership when you have problems with your hydraulic system.

CauseReason for ProblemSolution
Bad drive beltA bad drive belt can cause your pump not to work efficientlyReplace a frayed, cracked or worn belt
Bad tensioner pulleyWhen a tensioner pulley fails, it fails to keep tension on the drive beltReplace the pulley and grease the tensioner arm
Low or old hydraulic oilLow or old hydraulic oil can fail to lubricate the hydraulic system causing your hydraulic system to seem weakChange your hydraulic oil at regularly intervals as recommended by Husqvarna.
Check your hydraulic oil periodically to ensure your hydraulic fluid is full.

Husqvarna Mower Problem 5: Mower Won’t Drive Straightor Steer Correctly

Several items can affect your Husqvarna mower’s steering including incorrect tire pressures and worn steering components. The tracking may be off on Husqvarna zero turns causing the mower to veer off to the right of left.

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CauseReason for ProblemSolution
Incorrect tire pressureUnequal tire pressure can cause your mower to pull to one side.Check tire pressures and keep them filled to the manufacturers spec. Tires on each side of your mower requires equal pressures.
Bad dampers on zero turnBad dampers will cause your mower to jerk to one side when moving forwardReplace with a new damper
Tracking adjustment needed on zero turnWhen one tire is moving faster than the other, your mower can pull to one sideAdjust speed adjustment bolt to change the rotation speed of the tire. Refer to your owner’s manual.
Worn or loose steering components in riding mowerWorn bushings, washers and gears can cause your mower to not steer one way or the otherInspect and replace the parts that failed on your steering system

Husqvarna Mower Problem 6: Lawn Mower Won’t Move

A Husqvarna mower may not move because you have a bad drive belt, a broken tensioner spring or the tensioner pulley is worn. You may have a low hydraulic oil level.

Some Husqvarna mowers have sealed hydraulic systems so you are not able to service them. If you have any problems, you should bring it to your Husqvarna dealership.

Hydrostatic transmissions are used in Husqvarna’s riding mowers and zero turn mowers, however there are different procedures and steps to servicing each type. Refer to your owner’s manual for details on caring for your hydraulic system,

Detailed information can be found at:
9 Reasons Your Mower Won’t Move or Go Forward

CauseReason for ProblemSolution
Drive release lever in the wrong positionThe drive release lever allows hydrostatic mowers to roll freelyThe drive release lever must be in the operating position.
Missing key in the axleYour riding mower may have a small key in the axle that may have fallen out of placeReplace the key in the axle
Drive pump belt is wornThe mower won’t move if your drive belt has fallen off. It could also not move if the belt is worn.Replace a worn or cracked belt. Make sure the belt is securely around the pulleys.
Bad tensioner pulleyThe bearing in the tensioner pulley can failReplace the tensioner pulley
Missing idler arm springIf the idler arm spring breaks or goes missing, it can no longer place tension on the drive beltReplace the broken or missing spring
Low or old hydraulic oilLow or old hydraulic oil can fail to lubricate the hydraulic system causing your hydraulic system to seem weakChange your hydraulic oil at regularly intervals as recommended by Husqvarna.
Check your hydraulic oil periodically to ensure your hydraulic fluid is full.
Hot hydraulic fluidHot hydraulic fluid can be a sign of damage to your hydrostatic transmission systemLet your hydraulic oil cool. If you find your mower runs fine when it is cold, but does becomes weak when the hydraulic system gets hot, have your mower checked at your local Husqvarna dealership.
Air in the hydraulic systemAir must be bled from the hydraulic system after changing your hydraulic fluid or the mower will not be able to move at normal speedsFollow Husqvarnas procedures for changing hydraulic fluid and bleeding air from the system in your owner’s manual.

Husqvarna Mower Problem 7: Mower is Vibrating

There are many reasons why your Husqvarna mower may be shaking. You could have some missing or broken parts or it could be from debris that is stuck under your pulleys or wrapped around your spindles. It’s important to look your mower over closely as the littlest items can cause a big vibration.

Detailed information can be found at:

(Video) Husqvarna riding mower will not move

CauseReason for ProblemSolution
Loose or missing engine mounting boltsEngine bolts are used to reduce vibration of the mower when the engine is runningSecure engine bolts and replace any missing bolts
Clutch is badWhen there is bearing failure and it falls out of the clutch it can cause vibration. A manual engagement clutch can have a bushing and linkages that can fail.Replace the clutch
Unbalanced or damaged mower bladesDamaged and unbalanced blades can send a vibration through your mower. Blades must be balanced before installingReplace any damaged blades and make sure they are balanced.
Material wrapped around the blade spindleForeign materials like string or long weeds can get wrapped around your blade shaft causing vibrationRemove all debris and items wrapped around the blade shaft. Check for spindle damage.
Bad spindle housing bearingsVibration can be caused by a bad bearing in the spindle housing.Replace bearing in the spindle housing or replace the whole spindle housing assembly
Worn pulleys or deck beltCheck deck belt and pulleys for wearing of the belt and bearing failure in the pulleysReplace any damaged or worn belts and pulleys
Debris lodged in mowerThe smallest little things can cause your Husqvarna to excessively vibrate. Check over your mower for debris stuck in the deck or mower. Don’t overlook the small stuff.Check over your mower deck and mower for any place small items can be stuck in your mower. Remove these foreign materials.

Husqvarna Mower Problem 8: Mower Has a Bad or Uneven Cut

An uneven cut with your Husqvarna mower isn’t always a problem in the mower deck. It can be something as simple as a low tire that can make you’re your mower not sit level. Always check the tire pressure first and then move on to looking at your mower deck.

Detailed information can be found at:
12 Reasons Your Husqvarna Mower Cuts Uneven

Worn mower bladeUneven tire pressuresEngine speed is too low
Bent mower bladeUnleveled mower deckGround speed is too fast
Blade installed wrongBent blade spindle or spindle bearingDamaged deck shell
Clogged Mower DeckWorn deck pulleys or beltOperator error

Husqvarna Mower Problem 9: Mower is Leaking Gas

It can be hard to find fuel leaks in your Husqvarna because fuel evaporates into the air. By the time you realize you have a leak, there may not be a large wet spot giving you a clue to the area of the leak. Your only clue may be the strong odor left in your garage.

When looking for an oil leak, follow your fuel lines starting at the fuel tank. Check every component that makes up your fuel system for leaks.

Detailed information can be found at:
This is Where Your Husqvarna is Leaking Gas

CauseReason for ProblemSolution
Dirty of Failed CarburetorThe carburetor can collect a buildup of substances remaining from old gas that can cause blockages or parts failuresClean the carburetor and replace any damaged parts
Old Fuel FilterFilter can become pluggedReplace fuel filter
Bad Fuel PumpPump can wear and deteriorate over time and may begin leaking at the seamsReplace the fuel pump
Bad Fuel TankA metal tank can develop a rust hole. A poly tank can leak at the seams of the tank.Replace the fuel tank. Sometimes, a rust hole can be repaired if you can no longer find a replacement tank.
Bad Fuel Shut-Off ValveMetal and plastic shut-off valves are prone to leakingReplace the shut-off valve
Cracked Fuel LinesRubber fuel lines become dry and cracked causing gas to leakReplace the fuel lines
Cracked Primer BulbThe rubber of the primer bulb can begin leaking when it cracks or isn’t attached well to the fuel hose.Replace the primer bulb
Bad Seal in the Gas CapThe gas cap seal can fail and no longer seal allowing gas to splash out of the fuel tank around the gas capReplace the gas cap

FAQs

Why won't my riding lawn mower move forward or reverse? ›

If your riding mower won't move forward or reverse, check to see what the wheels are doing. If they are spinning, you could just be stuck or have a flat tire. On the other hand, it could be something simple, like forgetting to release your break.

Why is my Husqvarna lawn mower surging? ›

Why is My Lawn Mower Surging? (The Short Answer) Surging results from the engine having an unbalanced fuel-to-air mixture ratio. The most likely fault you'll run into will be a problem with the carburetor resulting in the fuel-air mixture erratically running lean or rich.

What causes a Husqvarna not to start? ›

A Husqvarna lawn mower won't start because the engine isn't getting the air, fuel or spark required. This is due to a plugged air filter, dirty carburetor, bad safety switch, faulty gas cap, plugged fuel filter, clogged fuel line, bad starter solenoid, or bad fuel pump.

Why does my Husqvarna riding mower keep shutting off? ›

If your Husqvarna mower starts and then shuts off after 5 to 10 minutes or so, the problem is likely fuel related. Husqvarna says this may be due to a clogged fuel filter, restriction in the pick up or an improperly vented fuel cap. A clogged fuel filter restricts the flow of fuel to the tractor's carburetor.

Why does my Husqvarna lawn mower keep dying? ›

Your Husqvarna lawn mower starts and then dies when your mower is unable to regulate the air to fuel mixture required by the engine to form a combustion. A dirty carburetor, bad fuel, plugged air filter, broken fuel pump and plugged fan can cause your mower to shut off and die.

What causes a riding lawn mower not to move? ›

If your riding lawn mower won't move, the problem could be a broken ground drive belt. If the riding mower is slow and sluggish, the ground drive belt could be so worn that it slips. Either way, follow the steps in this repair guide and video to replace the ground drive belt on your lawn tractor.

Why does my hydrostatic transmission won't move? ›

A bad drive belt is one of the main reasons your hydrostatic mower won't move. The hydrostatic pump relies solely on power transfer from the belt. First, check the belt's tension and ensure it's in good condition. If you find it slack or in bad shape, you'll have to replace it.

How do I know if my lawnmower transmission is bad? ›

Grinding gears, starting and stopping during operation, and the wheels not rotating with the pulley are common signs that your mower's transmission is breaking down.

What causes a mower to rev up and down? ›

A lawnmower that hunts and surges may be experiencing something as simple as an airflow issue. If the air that the engine requires to run is blocked, especially sporadically, it can cause the engine to slow down. When the blockage moves or clears, the engine may suddenly rev up in response.

What causes an engine to hunt and surge? ›

Engine hunting and surging at idle is usually caused by a fuel delivery, air leak, or governor system problem. Cleaning/overhauling the carburettor, adjustment of the governor, and/or changing the air filer may be required.

Can spark plugs cause surging? ›

3. Surging and Lagging. Another good indication that your spark plugs are dirty or worn is if your vehicle experiences surges of speed, resulting in a jerking acceleration. These surges occur because your spark plugs are not igniting the fuel in your engine at the proper rate, resulting in an uneven speed.

How do I know if my lawn mower spark plug is bad? ›

The more worn or dirty spark plugs are, the greater the tug on the rewind and more effort is required to produce an adequate spark. If you haven't turned on your engine recently, your mower won't start and/or you have to tug repeatedly on the rewind to start the engine, a damaged spark plug may be the culprit.

Why does my riding mower crank but not start? ›

The most common reason for a riding mower cranking over but not starting is bad gas, but other possible reasons include: Gas Valve Off. No Gas. Choke Fault.

How many safety switches does a Husqvarna riding mower have? ›

Installing one was a real chore but afterwards the mower started right up. As a riding mower can have as many as five safety switches, I'll always keep a least one as a spare.

Why does my Husqvarna riding mower shut off when I engage the blades? ›

Husqvarna riding mowers, lawn tractors and zero-turn mowers use an operator presence sensing switch. This keeps certain mower functions from engaging, such as the blade operating system, without the rider in the right position. If you leave the seat and the blade is engaged, the mower will turn off.

Why does my riding mower keep shut off when I engage the blade? ›

The most common causes for a mower to stop when blades are engaged include the mower being in reverse, faulty safety switches, bad fuel, or clogged fuel lines. Trying to engage the blades in tall or wet grass can also cause the mower to die. While fuel can be a common issue, it might not be your issue.

Why does my lawn mower dies when I engage the blades? ›

An improperly routed belt can cause the engine to die when the blades are engaged. To check belt routing, lower the deck to its lowest setting and remove the belt guard by the drive pulley. Next, lift the belt over the pulley and remove the pins that support the deck at the rear.

Why does my lawnmower run for 10 minutes then dies? ›

As the fuel level drops, a vacuum begins to form in the fuel tank because air can get in to fill the space the consumed fuel occupied. After about 10 or 15 minutes, the vacuum will become strong enough that fuel will stop flowing to the carburetor and the lawnmower will die.

Why does my lawn mower start but not stay running? ›

A lawn mower that starts and won't stay running isn't gettin sufficient air, fuel and spark. This can be due to old fuel, clogged fuel line, plugged fuel filter, dirty carburetor, plugged air filter, bad spark plug, faulty ignition coil, clogged fuel cap or an incorrect choke setting.

Why does my lawn mower keep shutting off? ›

A lawn mower will keep shutting off and stall when it isn't getting fuel due to old fuel, an insufficient fuel level, a clogged fuel line, plugged fuel filter or bad gas cap. It can also stall when the engine isn't getting air due to a plugged air filter or wrong choke setting.

How do you purge a Husqvarna hydrostatic transmission? ›

After the engine is running, move throttle control to slow position. With motion control levers in neutral (N) position, slowly disengage clutch/brake pedal. Step 4-Move motion control levers to full forward position and hold for five (5) seconds. Move levers to full reverse position and hold for five (5) seconds.

How do you troubleshoot a hydrostatic transmission? ›

Troubleshooting Hydrostatic Drives

If the system is overheating, check the oil level in the tank, inspect the heat exchanger, check the inline pressure filters, inspect the crossport relief valves, and check the pump and motor case drains for excessive bypassing.

What causes a hydrostatic transmission to slip? ›

Failure of any mechanical component, a broken hose, or clogged filter will cause tractor hydrostatic transmission problems. But the most common issue will be the oil itself. In the transmission section of your operator's manual, you'll find a section that covers oil viscosity.

When should I change my hydrostatic transmission fluid? ›

Replacing hydrostatic fluid is normally not necessary, unless the drive system is in need of some other internal service or repair.

What kind of oil do you put in a hydrostatic transmission? ›

The fluid recommended for Hydro-Gear transmissions and pumps is a 20W-50 motor oil or 15W-50 synthetic motor oil. If the machine has oil reservoirs, they are mounted to the frame behind the seat, for easy access and oil level check accessibility.

How do you unlock a lawn mower transmission? ›

How To Disengage Your Hydrostatic Drive on a Lawn Tractor ... - YouTube

Is it worth repairing a lawn mower? ›

Just like with your car, getting your mower serviced prevents problems, extends the lifespan, and ensures you get more on a trade-in when you go to upgrade.

How do I fix the self propel on my lawn mower? ›

Inspect the V-belt for damage and replace it with a new one if necessary. Damaged control cable – A broken, or misadjusted, control cable will prevent the mower from self-propelling as well. If the cable is intact but doesn't move freely, you can try applying a small amount of lubrication to the cable.

Why is my mower not pulling? ›

It's as simple as it sounds. Something might be stuck in the deck, meaning the lawn mower blade won't turn. If your blade is bolted onto the crankshaft and the blade is wedged, then the pull rope will not pull. A stick, rock, or garden hose could be the cause.

Why is my Husqvarna riding mower sputtering? ›

Lawn mower sputtering is usually one of the symptoms that your mower has a maintenance problem that needs fixing. These problems; clogged air and fuel filter, low-quality fuel, faulty spark plug, clogged carburetor, or water presence in the fuel tank.

How do you fix a surging idle? ›

HOW TO FIX A CARS IDLE SURGING & STALLING ( FOR ... - YouTube

Why does my lawn mower sound like it's dying? ›

Problems in the Fuel System

Check and clean the vent. Surging is also caused by water that got into the fuel. A mower left in a heavy rain or condensation on a hot summer day can choke the engine. Empty the gas tank, properly dispose of the old fuel and try a fresh batch of gasoline.

Why is my lawn mower engine hunting? ›

The most common reason for a surging lawn mower engine is a blockage in the fuel supply, but there are other possibilities: Bad gas. Bad spark plug. Dirty / faulty carburetor.

How do I fix my Briggs and Stratton engine surging? ›

How To Fix Briggs & Stratton Surging Engine | Nikki Carburetor Cleaning

What causes surging under load? ›

Usually, there are three leading causes behind car surging when accelerating. First, it can be that your fuel is making its way to your engine correctly. Second, it can be due to faulty torque converters. Lastly, engine misfires can come from a loss of vacuum coming from the intake system.

How do I know if my spark plugs need changing? ›

5 Signs You Need New Spark Plugs
  1. Engine Misfires. A misfiring engine is a big sign that one or more of your spark plugs are not firing properly. ...
  2. Poor Gas Mileage. When spark plugs are working correctly, they burn fuel efficiently in your engine. ...
  3. Trouble Starting. ...
  4. Slow Acceleration. ...
  5. Rough Idling.
9 Jul 2021

What does it sound like when you need new spark plugs? ›

Engine Knocking

Sometimes, especially while accelerating, you will hear your engine making a distinct knocking sound. That sound is caused by your spark plugs not detonating properly and igniting all the fuel.

How often should a lawn mower spark plug be changed? ›

For standard lawn mower and small engine maintenance, you should check and/or replace spark plugs: once a season. every 25 hours of use.

How do you check spark plugs without removing them? ›

Attach a spark plug tester to the ignition wire. At the other end, the tester connects to the spark plug as it sits in your engine. Turn the ignition ON. Start the engine, or simply turn it over if it won't start, and watch the transparent sides of the tester.

Will a bad spark plug keep a mower from running? ›

A dirty or fouled spark plug can cause your lawn mower to not start. It can also work itself loose, causing issues. If the spark plug appears to be seated correctly but the engine doesn't start, a new one may be in order. For a few dollars, this easy fix can get your small engine working again.

Why will my Husqvarna not move? ›

A Husqvarna mower may not move because you have a bad drive belt, a broken tensioner spring or the tensioner pulley is worn. You may have a low hydraulic oil level. What is this? Some Husqvarna mowers have sealed hydraulic systems so you are not able to service them.

Why is my Husqvarna lawn mower not starting? ›

A Husqvarna lawn mower won't start because the engine isn't getting the air, fuel or spark required. This is due to a plugged air filter, dirty carburetor, bad safety switch, faulty gas cap, plugged fuel filter, clogged fuel line, bad starter solenoid, or bad fuel pump.

How do I know if my riding mower fuel pump is bad? ›

Is My Fuel Pump Going Bad? Here Are 8 Signs It Is!
  1. Fuel Tank Noise. A damaged fuel pump might make a loud, whining sound that you'll hear from your gas tank. ...
  2. Difficult Starts. ...
  3. Sputtering Engine. ...
  4. The Actual Stall. ...
  5. Power Loss. ...
  6. Surging Power. ...
  7. Lower Fuel Efficiency. ...
  8. Dead Engine.
1 Jul 2020

How do you bypass the safety switch on a Husqvarna? ›

How To Bypass Your Riding Mower Seat Switch (but please don't)

How do I reset my Husqvarna Smart switch? ›

Can't Change Start Code: Smart Switch Ignition Password Reset

How do you check a safety switch? ›

To test, simply press the test button on each safety switch. This should automatically trip the switch to the off position and you will hear a 'clunk' sound. You should check inside your home to see which lights or appliances are now off. The circuits turned off by the safety switch test mean they are protected by it.

Why does my Husqvarna mower stall when I engage the blades? ›

A Husqvarna riding mower commonly dies when blades are engaged because the grass box is not fully closed. Other possible causes include: Grass Box Misaligned. Grass Box Sensor Wiring Loose.

Why is my hydrostatic mower not moving? ›

A bad drive belt is one of the main reasons your hydrostatic mower won't move. The hydrostatic pump relies solely on power transfer from the belt. First, check the belt's tension and ensure it's in good condition. If you find it slack or in bad shape, you'll have to replace it.

How do you check safety switch on riding mower? ›

How to Test Lawn Mower Safety Switches - YouTube

Does Husqvarna riding mower have a fuse? ›

Open the hood or engine housing. Locate the battery. The fuse holder is located under the battery case cover, in front of the battery, in a small holder.

Why does my lawn mower go dead when I engage the blades? ›

An improperly routed belt can cause the engine to die when the blades are engaged. To check belt routing, lower the deck to its lowest setting and remove the belt guard by the drive pulley. Next, lift the belt over the pulley and remove the pins that support the deck at the rear.

Why does my lawn mower bog down when I engage the blades? ›

If your lawn mower loses power when cutting, the most common causes are a clogged air filter, stale/contaminated gas, blocked fuel filter, too much/too little engine oil, dirty/damaged spark plug, blocked carburetor, clogged cutting deck or a dull blade.

Why does my lawn mower shut off while mowing? ›

A lawn mower will keep shutting off and stall when it isn't getting fuel due to old fuel, an insufficient fuel level, a clogged fuel line, plugged fuel filter or bad gas cap. It can also stall when the engine isn't getting air due to a plugged air filter or wrong choke setting.

How do you troubleshoot a hydrostatic transmission? ›

Troubleshooting Hydrostatic Drives

If the system is overheating, check the oil level in the tank, inspect the heat exchanger, check the inline pressure filters, inspect the crossport relief valves, and check the pump and motor case drains for excessive bypassing.

When should I change my hydrostatic transmission fluid? ›

Replacing hydrostatic fluid is normally not necessary, unless the drive system is in need of some other internal service or repair.

How does a Husqvarna hydrostatic transmission work? ›

Husqvarna hydrostatic drive or often referred to simply as hydros, hydro-drives, or HSTs — constantly have variable drives. A pump affects hydraulic fluid inside a closed system and reduces gearing that responds to changes in that hydraulic pressure.

How many safety switches does a Husqvarna riding mower have? ›

Installing one was a real chore but afterwards the mower started right up. As a riding mower can have as many as five safety switches, I'll always keep a least one as a spare.

How do you bypass the safety switch on a Husqvarna riding lawn mower? ›

How To Bypass Your Riding Mower Seat Switch (but please don't)

Where are safety switches located? ›

You will find it in your switchboard (usually outside a house. In a unit, it might be in your hallway, kitchen, linen cupboard or in a shared area, such as a 'common property' garage or power room). Safety switches look slightly different on each switchboard but always have a 'T' or 'Test' button.

How do you tell if a fuse is blown? ›

Remove the fuse from its holder. In some cases you may need a small screwdriver to unscrew the fuse holder cap. Look at the fuse wire. If there is a visible gap in the wire or a dark or metallic smear inside the glass then the fuse is blown and needs to be replaced.

How can you tell if a 20 amp fuse is blown? ›

How To Check Car Fuses-How To Tell If They're Blown - YouTube

Where is the fuse on a Craftsman lawn tractor? ›

Riding Lawn Mower Fuse Location - YouTube

Videos

1. Husqvarna Troubleshooting Starting Issues - Ranch Hand Tips
(Yanasa TV)
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