Bad Boy Mower Cutting Uneven [13 Painstaking Causes]

By | March 31, 2023

YardSimply is supported by readers like you. We may earn an affiliate commission if you purchase through links on our site. Learn why you can trust us here.

You were overjoyed when you purchased your new Bad Boy heavy-duty lawn mower. Your yard looked wonderful after every cut. Finding out that the mower you just bought no longer gives a good cut is unpleasant.

Your mower will not continue to operate with a bad cut. Now is the moment to pinpoint the cause of your uneven cut.

The following safety measures must be taken before you start to troubleshoot the cutting issue with your Bad Boy mower and allow proper maintenance:

  • Remove the ignition key and disconnect the spark plug wires to stop your mower from starting.
  • Never attempt to get below a mower deck when the motor is running. Always watch for the stop of all moving parts.
  • Put on thick work gloves to protect your hands from cutting edges.
  • Consult your owner’s manual for further safety instructions specific to your Bad Boy mower model.

Reasons Your Bad Boy Mower Cutting Uneven

The Bad Boy Mower can cause an uneven cut for a few reasons: 

Low Tire Pressure, Worn or Dull blades, Unbalanced blades, Damaged Spindle or Bad Spindle Bearing, Plugged deck, Deck is Not Level, Deck Belt is Bad, Bad Bearing in the pulley, the engine speed is too low, mowing at high speed, incorrect operation, the deck is damaged

Mower’s Tires Are Underinflated

If you’re noticing that your Bad Boy mower’s cutting uneven, there are a few things you can check to try and fix the issue. First, ensure that all four of your tires have the correct air pressure. The recommended tire pressure can be found in your owner’s manual or on the sidewall of each tire. If one or more of your tires is low on air, it can cause your deck to sit uneven and cause uneven cutting. 

When the mower pulls to one side, this can cause alignment problems, which can lead to an uneven cut. Another possible cause of an uneven cut is when the mower is angled incorrectly.

being one of the most overlooked tendencies to owning a lawnmower, but a lack of proper maintenance can be the problem over defective mower parts being one of the biggest overlooked tendacy to owning a lawnmower.

Lastly, make sure that all four leveling screws on each wheel are set at the same height. This will help ensure a level mowing deck and provide even cuts across your lawn.

Blades that Have been Worn or Dull

Your lawnmower’s blades are one of the most important parts of the machine, and if they are not properly maintained, you can end up with an uneven or bad cut. Dull or worn blades are a common cause of this problem, and if you don’t regularly sharpen and need to replace them, they can become extremely worn.

The ends of the blades can become rounded from impact with dirt and debris, leaving uncut grass between the blade width. The sail of the blade – the high side that is used to create air movement under the deck – can also become worn from extended use. When this happens, it reduces suction created by your mower’s blade and deck, making it harder to stand tall grass up for a nice cut.

You cannot prevent a blade from wearing down over time but regular maintenance will help extend its life. Inspect and sharpen your lawnmower’s blades often to keep them in good condition so you can continue to enjoy a beautiful yard all season long!

Mower Blade Which Is Bent

However, even the strongest lawnmower blades can bend when they contact a solid object. Regularly inspect the blades and remove anything that the blade might run into to prevent damage to your mower or an uneven cut.

Several techniques determine whether a Bad Boy mower blade is bent. Before removing the blade, one method is to inspect the spindle and bearing for damage. If one of these parts is damaged, likely, the blade is also bent.

A blade’s cutting edge can also be used to determine whether it is bent; if it is not precisely straight, then there is a good possibility that the blade is really bent.

If you do discover that the blade of your Bad Boy lawn mower is bent, don’t panic; it can generally be quickly rectified with a few straightforward changes.

If the damage is severe, the entire blade assembly might need to be replaced. In either case, be sure to maintain your mower’s blades so they can keep giving you a precise, equal cut every time you use it.

Mower Blade Is Off Balance

A blade that is out of balance is one potential issue.

A blade is said to be imbalanced if one side of the blade is heavier than the other. This may occur as a result of uneven wear from regular use. When the sharpening process removes more metal from one side of the tool than the other, the balance may also go off.

The severe vibration that an imbalanced blade can produce in your mower can harm the spindle bearings and other mower components of your Bad Boy mower.

If you attempt to use your Bad Boy mower with an installed imbalanced blade, it may cause a shaking mower when you start up the blades.

All lawnmowers, including your Bad Boy mower, should have their blades periodically inspected for balance issues. If a balanced is fitted correctly on, it should sit level.

If it doesn’t, it must be taken out and its balance verified before it can be used again. Your lawnmower’s lifespan will be extended, and damage will occur while in operation if you check for and fix any imbalance problems with your blades.

A blade balancer can be used to verify the balance of your blade before mounting it on your Bad Boy mower. This is a cheap item that can keep your mower from becoming damaged.

If you don’t have a blade balancer, you can hammer a nail about an inch away from the wall into the wall. The blade’s middle should be placed on the nail.

A balanced blade should be level. If one side is lower than the other, you will need to remove a small amount of metal from that end to level the blade on the nail.

Damaged Or Defective Spindle Bearings Are Present In The Mower

Due to its reputation for dependability and performance, bad boy lawn mowers are among the most well-liked models available. Even the greatest mowers, though, can have problems.

One problem that could occur is a broken spindle or faulty bearing, which might move your blade more than necessary and cause a noticeable vibration at high speeds. Due to this, it is challenging to achieve a clean cut, and the engine is also overworked.

Includes 1 spindle assembly
Replaces Bad Boy OEM #'s 037-6015-00, 037-6015-50
Fits CZT models 2010-2012

Grab either end of the blade while the mower is still connected to look for damage to the spindle housing. Remind rock it up and down to check for movement or play in the system.

When doing this test, you might also hear a knocking sound; if you do, there is probably damage that needs to be repaired.

Use an electric deck lift to allow you to remove the mower blade and disassemble the spindle housing as directed in your manual if you suspect damage. Reassemble everything in accordance with the instructions, replacing any broken components. You should be able to increase the lifespan of your bad boy mower and prevent future, costly repairs with the right upkeep and care.

The Mower Deck on Your Lawn Mower Is Clogged

However, even the best lawnmower can have problems if the mower deck becomes packed with grass clippings and debris. A plugged mower deck will cause your Bad Boy mower to work harder, resulting in an uneven cut.

Additionally, a plugged deck can also put strain on your engine leading to decreased performance or premature wear.

Keeping your mower deck clean and free of debris build-up is important to avoid these issues. Use a deck lift to allow you to scrape the one direction regularly to remove any accumulation of clippings or other materials that could restrict airflow and suction.

Additionally, try to avoid mowing in wet conditions as wet grass will stick to the underside of the deck more easily and quickly leading to a plugged condition. By following these simple tips, you can maintain optimal performance from your Bad Boy zero-turn for years to come.

Unleveled Mower Deck

You risk getting an uneven cut if your deck is not level. The mower may give you a stair-step-like cut if one side of your deck is lower than the other. Please consult your operator’s manual for specific leveling instructions since they vary by model for your Bad Boy mower deck.

Make sure your deck is level front to back and side to side. The front of the deck may sit a little lower than the back on various deck styles.

This will guarantee more even-cutting results. Commercial-grade mower engines are used in the construction of Bad Boy zero-turn lawnmowers, providing homeowners with a strong and dependable machine to handle their yard work requirements quickly and easily.

However, as with any investment, it’s important to keep up on maintenance to get the most out of using it.

Bad Belt Located in Deck

If you have a Bad Boy mower, it’s important to be aware of the potential deck belt problems that can arise. A bad or failing deck belt adjustment can also cause issues, from an uneven cut on your lawn to reduced blade tip speed and engine damage.

There are several ways to tell if your deck belt is beginning to fail. First, check for signs of wear such as cracks or fraying. Additionally, the belt may appear glazed or shiny from use – this is another sign that it needs to be replaced. Finally, if the belt feels stretched out or seems dry-rotted, it definitely needs to be swapped out for a new one.

If you notice any of these issues with your Bad Boy mower’s deck belt, don’t delay in replacing it. A failure to do so could result in costly repairs down the line. Be sure to purchase a replacement belt that is specifically designed for Bad Boy lawnmowers – using any other type of Belt could void your warranty and potentially cause further damage

Your Mower’s Pulleys Have A Bad Bearing.

Pulleys are an essential part of any lawnmower as they are responsible for transferring power from the engine to the blade assembly. Over time, however, the bearings in these pulleys can become worn down and cause problems. Your pulleys may not rest flat on the deck, resulting in an uneven cut when you mow your grass.

Additionally, bearing wear can cause your Pulley to spin slowly or intermittently, making it difficult to transfer power to your blades resulting in them not rotating at full speed. This can be extremely dangerous as it increases the risk of serious injury if you come into contact with them while spinning. 

To check if your Bad Boy Mower’s Pulley bears have gone bad, spin each pulley carefully by hand while paying attention to how smoothly they rotate.

If anything is binding or catching while you turn them or if they make any strange noises such as grinding or squealing then this points towards there being a problem with their bearings that will need rectified sooner rather than later.

Through replacement parts available from online retailers or Bad Boy Mower themselves before more significant damage occurs requiring professional repair services incurring further costs unnecessarily.

Engine Speed of Mower is Insufficient

Bad Boy mowers are well-known for their quality and durability. However, like with any engine, it is important to maintain a certain level of care to prevent any wear and tear.

One issue you may run into is if your engine speed is too low when you engage the mower’s cutting deck – this can cause your blades not to rotate properly and give your lawn an uneven cut.

To avoid this problem, be sure that you are running the mower at full throttle before engaging the deck. The engine needs to run at its highest speed to send enough power to the deck and ensure that the blades will rotate correctly.

If you notice that your engine is no longer giving you the necessary power to cut your lawn properly, it is important to have a small engine mechanic check it for any potential problems. Taking proper care of your Bad Boy mower can extend its lifespan and continue enjoying all it has to offer.

Utilizing a Mower at High Speeds

Bad Boy Mowers are advertised as being able to move quickly and easily over large areas of land with little effort, however, some users have found that when they try to mow at high speeds the engines on their Bad Boys can end up becoming overloaded, resulting in an uneven cut.

In order to avoid this problem it is important to know your mowing conditions and adjust your speed accordingly. When mowing tall grass, wet grass or thick grass it is best to operate at slower speeds in order too prevent bogging down the engine which can cause damage.

Also, hills should be approached slowly since going too fast could result in missing patches of grass or, worse, flipping the mower entirely. By following these simple tips you can ensure that you get a great-looking lawn while also keeping your Bad Boy running smoothly.

Incorrect Overlapping of Mower Deck

The mower leaves an uneven cut when the paths are not properly overlapped, which can be especially true for new owners of the machine. It is important to take the time to learn how to properly overlap your paths so that you don’t leave strips of grass between each pass.

You’ll also want to space your paths evenly so that you don’t have to keep going over the same section multiple times – with a little practice, and you should be able to get it just right!

Damaged Mower Deck

One problem you might encounter with your Bad Boy mower is damage to the deck shell, which can cause your mower to cut unevenly if it’s not fixed. There are several ways that the deck shell can become damaged.

Corrosion is one of the most common causes, especially if you live in an area with a lot of salt in the air or water. Holes or missing pieces such as missing screws can also occur if you accidentally hit something, such as a fence post or tree branch, while mowing.

If your deck shell is damaged, you have two options: repair it or replace it. If the damage is minor, such as a few small holes or some light corrosion, then repairing it should be fairly straightforward and won’t cost too much money.

However, replacing the entire deck shell may be necessary if the damage is more extensive – such as large holes or significant corrosion. This will obviously be more expensive than simply repairing it, but depending on the severity of the damage it may be your only option.

No matter what route you choose to take, fixing or replacing a damaged deck shell on your Bad Boy brand mower will ensure that it continues running smoothly and cutting evenly for years to come

FAQ (Frequently Asked Questions Mower Cutting Uneven)

Why is my grass wavy?

There are a few reasons why your grass might be wavy. One possibility is that your lawn has a thatch problem. Thatch is a layer of dead and living grass roots, stems, and other organic matter that builds up on your lawn over time. If the thatch layer is more than half an inch thick, it can start to restrict the flow of water, air, and nutrients to your grass, causing it to become weak and unhealthy. You can remove thatch from your lawn by power raking or verticutting.
Another possibility is that your grass is suffering from compaction. Compaction occurs when the soil is too densely packed, preventing air, water, and nutrients from reaching the roots of your grass. You can improve soil compaction by aerating your lawn.
Finally, your grass might be wavy because of poor drainage. If water isn’t draining properly from your lawn, it can cause the grass to become waterlogged, leading to root rot and other problems. You can improve drainage by installing a drainage system or by improving the grading of your lawn.

Why does my mower leave a strip of grass?

A mower may leave a strip of grass. When the blade is dull, it tears the grass rather than cutting it, which can leave a strip of uncut grass.

How do I level my Bad Boy mower deck?

If the mower deck on your Bad Boy lawn mower is not level, you can adjust it using the deck-leveling screws on the front and rear of the deck. To level the deck, first raise it to its highest position. Then, using a tape measure, measure the distance from the ground to the bottom of the deck at the front and rear of the mower. Adjust the front and rear deck leveling screws until the deck is level.

Is it better to mow grass wet or dry?

It is better to mow grass dry because wet grass can clump together and clog the mower.

How do you mow without leaving lines?

The best way to avoid leaving lines when mowing is to use a lawnmower with a rear roller.