6 Most common Cub Cadet RZT 50 Problems with Solutions

Are you an owner of cub cadet rzt 50 and face problems with it, and you don’t know what are the problem occurred. So why you worry, I am here to tell you the 6 most common cub cadet rzt 50 problems that most owner face.

Moreover, the Cub Cadet RZT 50 is a reliable and efficient zero-turn mower designed to make lawn maintenance easier and more efficient. However, even the best machines can encounter problems over time. Let’s dive into some common issues and how to troubleshoot them.

Also Read:12 Common Cub Cadet ZT1 50 Problems and How to Fix Them

What are the most common cub cadet rzt 50 problems?

The most common problems of cub cadet rzt 50 are

  • Engine Problems
  • Blade and Deck Issues
  • Transmission Troubles
  • Electrical Glitches
  • Steering and Maneuverability
  • Hydrostatic Drive Concerns

Now we discuss these problems one-by-one.

1. Engine Problems

Engine Won’t Start

One of the most frustrating issues is when your Cub Cadet RZT 50 won’t start. This can be caused by a variety of factors, including a dead battery, faulty ignition switch, or fuel problems.

To troubleshoot:

  • Check the battery for charge and connections.
  • Ensure there’s sufficient fuel in the tank.
  • Inspect the spark plug for fouling or damage.
  • Verify the ignition switch is functioning correctly.

Engine Stalls During Operation

If your engine starts but stalls during operation, it can disrupt your mowing routine. Common causes include dirty air filters, clogged fuel lines, or carburetor issues.

To troubleshoot

  • Clean or replace the air filter.
  • Check for clogs in the fuel lines.
  • Inspect the carburetor for blockages or damage.

Engine Overheating

An overheating engine can lead to serious damage if not addressed promptly. Check for obstructions in the cooling fins, ensure proper oil levels, and clean the engine regularly.


2. Blade and Deck Issues

This is the most common Cub Cadet RZT 50 problem that owner face and this problem occur due to the several reasons that we discuss below.

Uneven Cutting

If your Cub Cadet RZT 50 leaves patches of uncut grass, it’s essential to address the issue promptly. Uneven cutting can result from dull blades, an uneven deck, or worn-out belts.

To troubleshoot:

  • Sharpen or replace the blades.
  • Adjust the deck height to ensure even cutting.
  • Inspect and replace worn-out belts.

Blades Not Engaging

When you engage the blades, but they don’t spin, it’s a clear sign of trouble. This could be due to a damaged PTO (power take-off) switch, a worn-out PTO clutch, or a faulty electrical connection.

To troubleshoot:

  • Check the PTO switch and wiring.
  • Inspect the PTO clutch for wear.
  • Ensure the electrical connections are secure.

PTO Belt Problems

The PTO belt is crucial for blade engagement. If it breaks or slips off, your mower won’t cut effectively. Regularly inspect the belt for wear and replace it as needed.

3. Transmission Troubles

Loss of Power

If your Cub Cadet RZT 50 experiences a sudden loss of power, it can be due to a slipping drive belt, low transmission fluid, or a worn-out transmission.

To troubleshoot:

  • Inspect the drive belt for wear and proper tension.
  • Check the transmission fluid level and top up if needed.
  • Consult a professional if the transmission appears damaged.

Transmission Fluid Leaks

Transmission fluid leaks can lead to further transmission problems. Inspect the transmission for any signs of leakage and address them promptly.

4. Electrical Glitches

Dead Battery

A dead battery can disrupt your mowing session. Regularly check and charge the battery to avoid this issue.

To troubleshoot:

  • Check the battery voltage.
  • Clean and tighten the battery terminals.

Faulty Wiring

Faulty wiring can cause various electrical problems. Inspect the wiring harness for damaged or exposed wires, and replace or repair them as needed.

Ignition Switch Problems

If the ignition switch fails to function correctly, it can prevent the engine from starting. Test the switch and replace it if necessary.

5. Steering and Maneuverability

Steering Wheel Hard to Turn

Difficulty in turning the steering wheel can make your mower challenging to operate. Check for obstructions and lubricate the steering components regularly.

Uneven Steering

If your Cub Cadet RZT 50 doesn’t steer evenly, it can affect its maneuverability. Inspect the tie rods and steering linkages for damage and adjust as needed.

6. Hydrostatic Drive Concerns

Jerky Movement

Jerky movements during operation can indicate problems with the hydrostatic drive system. Check the fluid level and ensure it’s within the recommended range.

Hydrostatic Transmission Noise

Unusual noises from the hydrostatic transmission should not be ignored. Consult a professional to diagnose and repair any issues.

Maintenance and Care

To keep your Cub Cadet RZT 50 in top condition, follow these maintenance tips:

  • Regularly change the oil and filter.
  • Clean the air filter and cooling fins.
  • Lubricate all moving parts.
  • Inspect belts and replace them when worn.
  • Keep the mower clean and free from debris.

Warranty and Professional Help

If you’re unsure about diagnosing or fixing a problem, consult your Cub Cadet RZT 50’s warranty and consider seeking professional assistance to avoid further damage.


Owning a UTV can make lawn care a breeze, but it’s essential to be prepared for common Cub Cadet RZT 50 problems that may arise. By following the troubleshooting steps provided in this guide and maintaining your mower properly, you can ensure it continues to serve you efficiently.

FAQs About Cub Cadet RZT 50 Problems:

1. How often should I change the oil in my Cub Cadet RZT 50?

It’s recommended to change the oil and filter every 25 hours of operation, or at least once a year.

2. Can I use regular gasoline in my Cub Cadet RZT 50?

Yes, you can use regular unleaded gasoline with a minimum of 87 octane.

3. What should I do if my mower’s blades are vibrating excessively during operation?

Excessive blade vibration can indicate unbalanced blades or damaged spindles

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