7 Most Common Cub Cadet RZT 50 Problems And Easiest Fixing!

by Jack Grover
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Do you know what the most common cub cadet rzt 50 problem is? As per general consumers, the most common problem is the mower deck not engaging. This problem is usually caused by a faulty mower deck engaging the lever.

You may be worried about the RZT 50 problems you are facing. These problems can include the mower deck belt coming off or the engine stalling. But there is no such thing you can go through that can’t be solved!

While these problems can be frustrating, they can be fixed. Today’s article is dedicated to those who are looking for an easy and working way to troubleshoot and fix the most common engine problems.

Cub Cadet RZT 50 Problems

This lawn tractor has been a popular choice for many years, and for good reasons. It is a reliable machine that can handle a lot of work. However, like any machine, there are occasionally problems that can occur.

Here are some of the most common RZT 50 issues and the probable reasons behind them-

ProblemsProbable Cause
Difficulty starting the engineFaulty spark plug
The engine stallingDirty fuel
Engine running roughCarburetor needs adjustment
Mower deck not engagingThe PTO switch is probably off
The mower deck not cutting evenlyDull blades or deck not on the level
Clumps of grass being left behindThe grass catcher is full.
The mower leaving tire tracksThe wheels might not be properly inflated.

Luckily, there are solutions for all of these problems. Stay with us to find out how you can solve them the easiest way.

How Can You Do RZT 50 Troubleshooting?

When it comes to having a lawn that is the envy of the neighborhood, a lot of work goes into it. From mowing to edging and everything in between, it takes time and effort to keep a lawn looking its best.

A critical part of lawn care is troubleshooting any issues that may arise. A few common issues can pop up when it comes to a Cub Cadet RZT 50. By knowing how to troubleshoot these issues, you can keep your lawn looking great all season long.

If you’re having trouble with your Cub Cadet RZT 50, you can do a few things to troubleshoot the issue:

  1. First, check the oil level in your mower and make sure it’s complete.
  2. Next, check the air filter and clean it if it’s dirty.
  3. Finally, check the spark plug and replace it if it’s worn out.

Let’s take you on a tour of the common problems that most complain.

Transmission Problems

You may eventually have transmission problems if you own a Cub Cadet RZT 50. The most common transmission problems are: the transmission won’t engage, the transmission slips, or the transmission leaks.

If you’re experiencing any of these problems, here is what you should do-

First, check the transmission fluid level. If it’s low, add more transmission fluid. If the fluid is dirty, flush the transmission and add new fluid.

Next, check the transmission belt. If it’s loose, tighten it. If it’s damaged, replace it.

However, if those steps don’t fix the problem, the transmission may need to be replaced.

Clutch Problems

Clutch problems are a common issue with the RZT 50. When the user wants to mow, the clutch engages the blade. If the clutch fails to engage, the edge will not engage, and the mower will not mow.

There are a few things that can cause the clutch to fail.

  • One of them is a broken clutch cable.
  • Another issue is a faulty clutch pulley.
  • The clutch cable is attached to the clutch pulley.

If the pulley is damaged, it cannot engage the blade.

You’ll need to replace the clutch cable to fix a broken one. Take the mower’s deck off to do so. The clutch cable can be accessed once you remove the deck. Disconnect the clutch cable from the clutch pulley and remove the old cable. You can now install the new cable after removing the old one.

Also Read: Cub Cadet Fuel Pump Problems And Quick Solutions

The new cable must then be threaded through the deck and connected to the clutch pulley. You can reattach the deck and test the mower to see if the clutch is working properly once the new cable is connected.

Besides, you may have to replace the clutch pulley if it’s the source of the problem. To do so, follow a similar way to access and remove the old pulley and replace it with the new one. After installing the new pulley, you can reattach the deck and test the mower to see if the clutch is working properly.

If the clutch is still not working properly after these two fixes, the mower may need to be repaired by a professional.

Steering Problems

You can check a few things if you’re having steering problems with your lawn tractor.

  • First, make sure the steering wheel is centered. If it’s not, adjust it so that it is.
  • Next, check the steering linkage. Ensure all the pins are in place and the linkage is not damaged.
  • Finally, check the tires. If the tires are low on air, they won’t grip the ground, and the steering will be more challenging.

Starting Problems

If your tractor doesn’t start, there are several things you can check the following to troubleshoot the problem.

  • First, ensure that there is gas in the tank and that the gas is fresh. It may have gummed up the carburetor if the gas is old, preventing the engine from starting.
  • Next, check the oil level and make sure the oil is fresh. If the oil is old, it may have caused the engine to seize, preventing it from starting.
  • Finally, check the spark plug and make sure it is clean and in good condition. If the spark plug is dirty or damaged, it may prevent the engine from starting.

PTO Problems

Sooner or later Cub Cadet tractor owners may have experienced PTO problems. The PTO, or power take-off, is the mechanism that allows the engine of your RZT 50 to power the mower deck. And if the PTO isn’t working properly, the mower deck won’t engage, and the blades won’t spin.

There can be some different reasons why the PTO might not be working properly-

  • One possibility is that the PTO switch is not engaged. The PTO switch is on the control panel of the RZT 50. Make sure that the switch is in the “on” position.
  • Another possibility is that the PTO belt is loose or damaged. The PTO belt is under the engine cover. To check the belt, remove the engine cover and inspect the belt. If the belt is damaged, then it will need to be replaced.
  • If the PTO switch is engaged and the PTO belt is not damaged, the problem may be with the PTO clutch. The PTO clutch is under the engine cover. To check the clutch, remove the engine cover and inspect the clutch. If the clutch is damaged, then it will need to be replaced.

If you’re still having problems with the PTO, it’s best to take your RZT 50 to a certified Cub Cadet dealer. They will be able to diagnose and fix the problem.

Transmission Problems

If you’re having left transmission problems with your Cub Cadet RZT 50, there are a few things you can try to fix the issue.

  • First, check the transmission fluid level and make sure it’s full. If it’s low, topping it off may solve the problem.
  • The transmission filter is the next thing to check if the fluid is full. A clogged filter can cause shifting problems. Clean or replace the filter as needed.
  • Finally, if neither of those solutions works, it’s possible that the transmission itself is damaged and replaced.

This Video Will Help You Too!


Frequently Asked Questions (FAQs)

What engine is on a Cub Cadet RZT 50?

This Cub Cadet RZT 50 is powered by a Kohler Courage engine, known for its durability and performance. With a 23 horsepower engine, the RZT 50 has plenty of power to get the job done quickly and easily.

How do you adjust the hydrostatic drive on a Cub Cadet zero turn?

To adjust the hydrostatic drive, adjust the drive belt tension. You can adjust the drive belt by loosening the bolts that hold the pump to the engine. Then, you can turn the tensioner to tighten or loosen the drive belt. After the desired tension is achieved, you can tighten the bolts back down.

What would cause a Cub Cadet not to turn over?

A few things could cause a Cub Cadet not to turn over. The most common reason is that the battery is not charged. Another possibility is a problem with the starter or ignition system. If the engine is not getting enough fuel, it will not turn over.


Riding lawn mowers like the Cub Cadet RZT 50 are a popular choice among homeowners and for good reason. They’re long-lasting, dependable, and a good buy.

However, even the best products can encounter issues from time to time. If you are facing these Cub Cadet RZT 50 problems, please do not hesitate to contact their customer service. We hope you found the above information in our article helpful!

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