Machines and equipment are meant to go through wear and tear during continuous use, be it any brand. And the John Deere 757 is no exception to this truth. However, the above fact does not tear down the popularity or credibility of a good brand, especially such as the John Deere.
Problems are normal phenomena for machines, and it’s all simple physics. So, keeping abreast of how to fix the issues is necessary in case you get stuck up in a situation.
Let’s discuss the issues with the John Deere 757 and how to fix them. Before going any further, though, here are the top 7 issues that JD 757 users most frequently encounter.
- Engine Backfire
- Blade Clutch Failure
- Lean Running
- Problematic Best and Pulley
- Unusual Fuel Delivery
- Uneven Cut
- Smoke Emission
Don’t let knowing about these issues overwhelm you because they can be resolved at home and are not particularly serious if treated promptly. And you’re in luck if you’re reading this post. Because we’ve listed some of the simplest methods for troubleshooting in this post, both experienced and novice mower users can use them.
Before making suggestions, our staff reviewed several customer evaluations and engaged in extensive discussion.
7 Common John Deere 757 Problems and their Fixes
There is no doubt that the John Deere 757 is a versatile zero-turn mower. The mower allows the lawnmower to maneuver effortlessly, making quick turns and pivoting easily, resulting in terrific cutting performance. However, ignoring the concerns with the John Deere 757 would only be half correct.
So, here is a list of problems with this tractor that we will investigate thoroughly to determine the reasons and troubleshooting procedures. If you already own a JD 757 mower or are considering purchasing one, you must pay attention to this section.
1. Engine Backfire
Engine backfire is the first and most frequent issue owners of the John Deere 757 encounter.
When the engine backfires, a loud noise will be heard. Due to the gas being ignited outside of the typical place in the combustion chamber, a loud noise is produced. There are a few typical causes for a riding lawn mower’s engine to backfire.
- Using regular octane gasoline
- De-accelerating the engine too fast
- Fuel coming out of the engine combustion
- A compromised spark plug
- An engine too rich or too lean, etc.
Changing the gasoline should be the primary priority while troubleshooting. Always keep in mind that JD 757 requires A-grade gasoline. Additionally, check that the gasoline contains no additional additives, as these produce more heat than typical.
If the gasoline is fine, check the spark plug. Frequently, a mower will backfire due to a worn spark plug. Check the condition of your spark plug after removing it. Replace it if it appears to be worn out. Reinstall it after cleaning it with a wire brush if it’s dirty.
In addition to them, you can adhere to the instructions below.
- Check to see if the flywheel needs to be replaced if it is.
- Never use gasoline that has a high percentage of ethanol.
- Reduce the engine’s speed slowly and let it rest for at least thirty seconds.
- Maintain a clean fuel filter.
- Periodically tune up the engine.
2. Blade Clutch Failure
We have already discussed the detrimental effects of using normal octane gasoline, which increases heat generation. This high heat generation will eventually affect the engine’s other components. One of the consequences of an overheated engine is a failed blade clutch. In addition, the crankshaft heats up due to the overheated engine.
As a result, the blade clutch will not function properly. When you inspect the hoses and cables, you will notice they are strained or broken. Before proceeding with the repair, you must confirm that there is no leakage inside the cylinders. This could be another source of the problem.
In terms of troubleshooting, you should take the mower to a professional to get the faulty blade clutch repaired.
3. Lean Running
What does a lean running mower lean? A mower running lean means more air than fuel in the engine. When the engine runs lean, it will become hotter. Your John Deere 757 is more likely to run lean if it is older than a year or two.
A lean running engine may also cause as the result of any of the following issues.
- Inside the lawnmower, there is dirt and trash.
- A faulty oxygen sensor
- Fuel injector damage
- Inside the mower, there is residual petrol.
Regardless of the issue, knowing when your engine is running lean is critical. Here are a few typical signs of a mower operating too lean.
- Starting problem
- Bad performance
- White or too clean spark plug
- The mower will produce more heat
You can take your John Deere 757 to a qualified repair to confirm whether it is running lean. The solutions to this problem will be highly specialized to your reasons.
However, you can try to remove any undesired dirt, gunk, or varnish from the motor and other mower components before seeking professional assistance. If you clean your lawnmower once a month, you can prevent the mower from running lean.
Running lean might indicate several serious issues with your lawn mower. Therefore, have your lawnmower examined by a qualified mechanic if you are certain that your John Deere 757 is running lean.
4. Problematic Belt and Pulley
On a zero-turn mower, the PTO does not directly rotate the blades. Instead, a set of pulleys powered by a belt performs the labor. So what happens if there are problems with the belt or pulley?
A worn-out belt or pulley on an old John Deere 757 mower is a typical problem. The expected lifespan of a mower pulley or belt is not specified. Nevertheless, after repeated use, they can begin acting unpleasantly. When a pulley is damaged, it will begin to flop a little. What is more, then? You can see how greasy the inside is if you lift it.
Long-term use may cause the belt to become worn out and require replacement. That said, a broken belt may come off a riding mower. High friction from a loose belt may eventually generate heat that could start a fire in the mower’s engine.
Replacing a worn-out pulley and/or belt is one solution to the problems mentioned above. Even for a beginner, changing a mower belt is simple and doesn’t take much time. However, you can visit a certified mechanic if you’re not sure enough.
Note: You can choose V-shaped belts from John Deere or Kevlar V-design belts. The latter is more budget-friendly.
5. Unusual Fuel Delivery
Given the peculiar fuel delivery in your JD 757 mower, the carburetor may be to blame. We refer to the fact that a clogged carburetor frequently brings up irregular fuel delivery. Carburetor clogs cause them to release more fuel than they should. In addition, abnormal gasoline distribution may occur if there is a leak in the fuel lines and hoses.
If the carburetor is clogged, check it out and clean it using a carburetor cleaner. Also, inspect the gasoline line and hoses; if there are any leaks, repair them immediately.
6. Uneven Cut
Did you ever complete mowing your lawn and go to check it out, only to be disappointed? If yes, then blame the uneven cut offered by your lawnmower. Low tire pressure is one of the main reasons your zero-turn mower offers an uneven cut. Some other potential reasons include the following.
- Bent, unbalanced, or dull cutting blade
- Debris stuck in the mower deck
- Adverse mowing conditions
- The mower is running too fast
- The mower is not level
- Wheels are set at different heights
- Damaged wheels
So what are the solutions?
First, pay close attention to every component, particularly the blade, deck, and wheels. The specifics of the solutions will depend on the type of issue you are facing.
For example, if the wheel pressure is low, you’ll have to add air to your tires to raise them to the pressure indicated on the tire’s sidewall.
It’s also important to examine the mower deck for any debris that may be lodged. However, you should seek professional assistance if the cutting blade is the issue—deformed, loose, damaged, or dull.
The following list includes additional methods that could aid you in solving the issues:
- Adapt the mower’s speed to the terrain when cutting
- Level terrain is ideal for mowing.
- Inspect the deck shell. Replace it if you discover damage to it.
- If the belt or pulley is worn out, replace them.
- Take the mower to a repair to replace the wheels if damaged.
7. Smoke Emission
Smoke emission is another frequent issue with the JD 757. The air filter is the main culprit behind this issue. A clogged air filter prevents your zero-turn mower from getting enough air, which causes it to start removing oil from other components. This could result in smoke production, oil burning, and oil leaks.
Therefore, the first step in fixing this problem is to see if the air filter is clogged. In that case, change the air filter right away. An overfilled crankcase and an obstructed air filter can cause the problem. As a result, make sure the engine is loaded with oil to the proper level. You can also take your lawnmower to a professional to thoroughly examine and rectify the problems.
John Deere 757 Reviews
Between 2002 and 2004, the John Deere 757 zero-turn mower was manufactured. Unfortunately, this mower is no longer manufactured. However, a used JD 757 in decent condition can be purchased. If you want a strong and long-lasting zero-turn mower, the John Deere 757 is a fantastic choice. It’s constructed of robust materials and has large wheels that can tackle tough terrain.
This 25 HP engine has a full-pressure lubrication system and runs on gasoline. Also, an air conditioning system in the mower keeps the engine from overheating and keeps it cool.
So, if you’re thinking about purchasing a secondhand JD 757, here are some customer reviews. You may determine from these comments whether it is worthwhile to purchase this equipment and what genuine people think of it.
“Overall, satisfied with the mower, but cost of parts and service outrageous at dealerships.”
“…works well, just needs a big bank account to keep it going.”
“John Deere has failed to add air ride seats, needing a faster blade speed such as 2500 RPM…”
“Excellent service, reliable.”
How to Prevent John Deere 757 from Getting into Troubles?
No matter how much care you take to keep your mower in working order, problems might still arise.
However, this does not imply that one will not exercise caution in maintaining their mowers. The easiest way to avoid a breakdown of your JD 757 zero-turn mower is to ensure that the mower’s parts are regularly maintained.
In this regard, it should be remembered that over time and repeated use, parts age and deteriorate, affecting the mower’s overall performance. Therefore, be careful to inspect your mower regularly by a local mechanic. Additionally, if it exhibits issues, immediate intervention is required.
This concludes our discussion of the top 7 problems with the John Deere 757 zero-turn mower. Therefore, if you have reached this point, it indicates you have read this post. The good news is that you won’t need to worry any longer about John Deere 757 issues.
This essay was written based on our opinions about the machine, its issues, and what experts say about it. It is comprehensive and will make it simple for our readers to resolve the mower issues. So, whether you have bought a John Deere 757 or are considering getting one, this post will be helpful to you.
John Deere 757 is a zero-turn mower.
The fuel tank of John Deere 757 can hold 9.5 gals of fuel.
John Deere 757 possesses a 25HP Kawasaki FD751D gasoline air-cooled vertical-shaft V-Twin engine.
The John Deere 757 mower should last between eight and ten years, which translates to around 4,500–5,000 hours throughout its lifetime.
No, the John Deere 757s are no more produced. This model was manufactured between 2002-2004. Yet, one can buy a used (second-hand) JD 757.
The John Deere 757 is a medium-sized mower and weighs around 1,917 lbs (870 kg).