Polaris Sportsman 570 Problems – [Diagnosed & Fixed!]

ATV ride lovers everywhere know the frustrations caused by the recent models of Polaris. It is coming forward here and there to make the owners flood online platforms with complaints.

For this reason, all the Polaris Sportsman 570 Problems will be discussed.

Problems with the engine, battery, fuel pump, and transmission system are the most common. These include issues with starting, poor performance or connection issues, faulty components, or dirty internal chambers. The solutions with repairs or replacements are simple to follow.

Keep reading to learn more about the most common Polaris Sportsman 570 problems. 

How Good Is The Polaris Sportsman 570?

Polaris Sportsman 570 EPS Tractor

The Polaris Sportsman 570 is a great ATV for the money. It has many features found on more expensive models, such as independent suspension and a 4-stroke engine. It’s also comfortable to ride, thanks to its adjustable seat and handlebars.

However, just like any machine, all the different 2014 to 2020 Polaris Sportsman 570 has been reported to show some problems.

We are going to figure out the solutions for each of them!

Polaris Sportsman 570 Engine Problems

The Polaris Sportsman 570 models have been showing engine problems recently. With this, Polaris has issued a recall for all affected models. If you have one of these vehicles, it is important to get it fixed as soon as possible.

Problem Symptom Solution
Backfiring Engine Loss Of Power Replace Any Faulty Component Causing The Backfire
Starting Problems Grinding Noises From Engine Replace The Starter Motor
Electrical Malfunctions Blowing Fuses, Or Engine Won’t Crank Replace The Fuse, Or Any Other Faulty Components

There are 3 real problems to work within the engine department. Let’s see how the symptoms offer the right solutions. 

Problem 1: Backfiring Engine

Backfiring in the engine is usually caused by an improper fuel/air mixture or timing issue. This can happen due to a dirty or malfunctioning carburetor, faulty spark plugs, a bad fuel pump, or a clogged air filter.

Other possible causes include a weak ignition coil and a faulty fuel injector. When the engine is backfiring, you need to inspect all the components that run the engine. Do a proper check for any kind of corrosion or damage. 

Symptom: Loss Of Power

When an ATV engine backfires, it causes a loss of power due to an explosion of unburned fuel. This causes a decrease in the amount of fuel that is actually being burned in the combustion chamber. 

Solution: Replace Any Faulty Component Causing The Backfire

The solution is simple, replace any component which is causing the trouble. Apart from cleaning a clogged air filter, you can also replace it. Other than that, you can replace the spark plugs, fuel pump, ignition coil, or fuel injector.

To find the specific issue, use the fuel injector tester to see how certain components function. A qualified mechanic can do the job promptly and work with the replacement more proficiently. 

Problem 2: Starting Problems

A bad starter motor can cause starting problems for an ATV rider by preventing the ATV’s engine from turning over.

When the starter motor is not functioning properly, it will not be able to generate the required power to engage the engine’s flywheel. This will make it impossible for the engine to start.

Symptom: Grinding Noises From Engine

Engine grinding noises indicate that the starter motor is struggling to engage with the flywheel, which is a common sign of starting problems in ATV riders.

Solution: Replace The Starter Motor

First, you must buy a good quality starter motor to initiate the installation process. Here is how the entire operation would work:

  • Disconnect the battery cables from the starter motor.
  • Remove the mounting bolts attaching the starter motor to the ATV rider.
  • Detach the wires connecting the starter motor to the ATV rider.
  • Install the new starter motor in place of the old one using the same mounting bolts and wires.
  • Reconnect the battery cables to the starter motor.

To ensure a proper replacement, do take professional assistance. 

Problem 3: Electrical Malfunctions

Poor maintenance, age, and extreme temperatures can lead to electrical malfunctions. Also, loose or corroded wiring, broken or faulty electrical components, and water or dirt contamination can be the reason. 

Symptom: Blowing Fuses Or Engine Won’t Crank

When the power is not flowing correctly due to bad wires and faulty parts, the engine will not start. In such a scene, the fuses will blow, and the engine won’t crank. 

Solution: Replace The Fuse Or Any Other Faulty Components

Replace the corroded wires rather than cleaning them. Replacing the fuse is the wisest thing to do to resolve the problem completely.

To do the job, disrupt the faulty fuse or component from the electrical system using a pair of pliers. Once disconnected, pull it out of the vehicle and replace it with a new one.

Polaris Sportsman 570 Battery Connection Problems

Many Polaris Sportsman 570 riders among all the 2014 to 2020 versions have experienced battery connection issues. These issues don’t have to be frustrating and time-consuming to diagnose and repair. 

Problem Symptom Solution
Bad Battery Hard To Start The ATV Clean All the Connections And Replace The Battery
Bad Voltage Regulator  Flickering Ignition System Replace The Voltage Regulator

There are easy solutions available based on certain causes and symptoms. Let’s find out more. 

Problem 1: Bad Battery

A running system battery can go bad prematurely for various reasons. These include overcharging, over-discharging, using a battery in extreme temperatures, and improper maintenance. 

Symptom: Hard To Start The Vehicle

The battery serves as a power supply to the vehicle’s electrical systems, and when it is weak or dead, it can cause the electrical components not to work correctly, making it difficult to start the engine. 

Solution: Clean All the Connections And Replace The Battery

To clean battery connections and install a new battery, you will need some products such as battery terminal cleaners spray and some screwdrivers and wrenches. (our pick: NOCO E404 Battery Terminal Cleaner Spray)

With those, you can follow a few steps:

  • Disconnect the negative and positive cables from the old battery. 
  • Then, using a wire brush or a battery terminal cleaner, clean the terminals of the old battery and the connectors on the cables. Make sure that all the corrosion is removed from the terminals and connectors.
  • After removing a certain layer of dirt, coat the terminals and connectors with a battery terminal protector. This will help to protect the terminals and connectors from corrosion in the future. 
  • After that, install the new battery in the same manner as the old one. Connect the positive cable first and then the negative cable. Make sure that the terminals and connectors are properly tightened. 

Before starting the engine, check the battery level and charge it, if necessary. And so, the work is done. 

Problem 2: Bad Voltage Regulator

A voltage regulator may not function well due to insufficient cooling, corrosion, and dust or dirt buildup. Additionally, voltage regulators can become damaged due to age, vibration, and other environmental conditions.

Symptom: Flickering Ignition System

If the voltage regulator is not functioning properly, it can cause flickers in the ignition system, leading to various issues. This includes poor engine performance, misfiring, and a stalled engine.

Solution: Replace The Voltage Regulator

To replace the voltage regulator, you can follow a few steps. These are:

  • Disconnect the negative battery cable and remove the alternator belt.
  • Remove the nut securing the voltage regulator to the alternator and slide it out. 
  • Install the new voltage regulator in the same manner, tightening securely. 
  • Once the new voltage regulator is installed, reconnect the negative battery cable and reinstall the alternator belt.

Things should get better from here.

Polaris Sportsman 570 Fuel Pump Problems

The owners of Polaris Sportsman 570, across all versions, have experienced fuel pump problems also. There are two distinct issues to notice. 

Problem Symptom Solution
Fuel Leaks Acceleration Issues Weld The Fuel Tank
EFI Issues Frequent Stalling Replace Fuel Injector

Based on the specific symptoms, we will suggest the appropriate fixes the way we did before. 

Problem 1: Fuel Leaks

Fuel leaks inside the Polaris Sportsman can be caused by various issues, including worn fuel lines, loose or damaged fuel fittings, worn or damaged gaskets, a faulty fuel pump, or a damaged fuel tank.

Symptom: Acceleration Issues

Fuel leaks can usually cause the fuel-air mixture to become unbalanced, decreasing power and acceleration. In extreme cases, it can also cause a misfire in the engine, and an immediate fix is required. 

Solution: Weld The Fuel Tank

To fix the issue by welding the fuel tank, here are some steps to follow:

  • Use a wire brush to remove any rust or corrosion that may be present. 
  • You will need to prepare the area for welding by grinding the holes or cracks’ edges to ensure a good welding surface. 
  • Once the area is prepared, use a MIG welder to weld the hole or crack outside the tank. Be sure to use a filler rod compatible with the tank’s material. 
  • After welding, check for leaks, and if necessary, apply a sealant to the area before re-installing the tank.

You can always replace faulty components such as gaskets, fuel pumps, or the entire tank. Tighten all loose connections and see an expert for the required replacement. 

Problem 2: EFI Issues

EFI (Electronic Fuel Injection) issues can be caused by improper fuel delivery into the engine’s combustion chamber. According to common reports, Polaris ATV owners have reported that the issue is traced directly down to the fuel injector. 

Symptom: Frequent Stalling

Due to EFI issues, the engine shuts off unexpectedly while the vehicle operates. It often occurs when the engine is idling or when you are trying to accelerate, as the fuel delivery is not sufficient. 

Solution: Replace Fuel Injector

Here is how the replacement process works:

  • Drain the fuel system and disconnect the negative battery terminal to remove the old fuel injector. 
  • Disconnect the fuel line into the injector and the wiring harness, then remove the fuel injector retaining bolts. 
  • Carefully pull the fuel injector out of the engine and replace it with the new one. 
  • Install all the removed parts and reconnect the fuel line, wiring harness, and battery.

You definitely learn a few things from the mechanics who do this job for a living. This is mainly to lower your costs of repairs in the future. 

Polaris Sportsman 570 Transmission Problems

If you are experiencing difficulty with your Sportsman 570 transmission, you should not worry it is a common recurring issue. 

Problem Symptom Solution
Slipping Gears Difficulty Shifting Gears Repairing The Transmission System
Power Steering Problems Difficulty Turning Wheels Replace The Entire Power Steering System
Brake Failures Vibration When Braking Adjust The Brakes Or Replace The Brake Lines

Three different problems can appear within the transmission system. The solutions are not that hard to find. 

Problem 1: Slipping Gears

Slipping gear issues in an ATV rider can be caused by frequent improper gear selections, damaged clutch plates, or a lack of lubrication in the transmission.

Slipping gears can cause the vehicle to become less efficient and can also lead to further damage if left unchecked.

Symptom: Difficulty Shifting Gears

Slipping gears on the ATV causes difficulty in shifting because the gears in the transmission don’t engage properly. When the gears slip, they can be difficult to shift, resulting in a jerky ride that makes it harder to control the machine.

Solution: Repairing The Transmission System

To repair the transmission system inside a vehicle, you need to diagnose the issue and determine what parts need to be replaced. From there, you will go on with the process:

  • The transmission needs to be removed from the vehicle, and the old parts, such as clutch plates, need to be replaced with new ones. 
  • Put the transmission back in the vehicle, and the fluid levels must be checked and refilled, if necessary. 
  • The transmission system must be tested to ensure it is operating correctly. 
  • Take the vehicle for a test drive to ensure the transmission works properly.

You also need to lubricate the transmission system. To do the job, follow this simple process.

  • Check the transmission fluid level and top it off with the appropriate type of transmission fluid. 
  • Use a transmission flush kit to flush out the old fluid and replenish the system with new fluid.

This will make things safe and secure for a longer period of time. 

Problem 2: Power Steering Problems

Common power steering problems happen due to a faulty power steering pump and a broken or worn belt that drives the power steering pump. In general, any defaulting components can cause the issue. 

Symptom: Difficulty Turning Wheels

Power steering problems can make it difficult to turn the wheels because the rider has to use more force and exert more effort to make the wheels turn. This is due to the reduced hydraulic pressure that the power steering system provides.

Solution: Replace The Entire Power Steering System

Replacing the entire power steering system requires the following steps:

  • Disconnect the battery to prevent accidental electrocution.
  • Disconnect the existing power steering system, including the steering shaft, steering rack, and all related hoses and components.
  • Install the new power steering system, following the manufacturer’s instructions.
  • Reconnect all hoses, fittings, and components.
  • Test the new power steering system by turning the wheel and ensuring it works correctly.
  • Reconnect the battery and test the system again.

You will enjoy a fresh new riding experience when the process is completed. 

Problem 3: Brake Failures

Improper brake maintenance can lead to wear and tear on the brake pads or rotors, resulting in a loss of braking power. Moreover, faulty brake components, such as loose brake lines, can cause a loss of hydraulic pressure and result in brake failure.

Symptom: Vibration When Braking

The vibrations happen due to the lack of friction between the brake pads and the rotors, resulting in insufficient force to slow the vehicle down. A quick fix is definitely required. 

Solution: Adjust The Brakes Or Replace The Brake Lines

To fix the brake failure, follow the process below.

  • Adjust the brakes and the brake lever so it is not too tight or loose.  
  • Adjust the cable tension by turning the adjuster at the lever and the adjuster at the wheel

If this doesn’t work, you should replace the brake lines at the repair shop. Do it so that everything goes back to normal. 

Polaris Sportsman 570 Maintenance Guide

Polaris 570 initial servicing

To ensure proper performance and longevity of your Polaris Sportsman 570, regular maintenance is recommended. Here are a few tips:

  • Keep your ATV clean by washing and waxing regularly.
  • Check the oil, filter every 3 months or after every 50 hours of use, and change when necessary.
  • Check the air filter every 3 months and clean or replace it as needed.
  • Inspect the tires for pressure, tread depth and wear.
  • Lubricate all moving parts regularly.
  • Change the spark plug at least once a year.
  • Regularly inspect the electrical system for any loose or corroded connections.

Following these simple steps will help keep your Sportsman 570 running at its peak performance.


Is the Polaris 570 engine reliable?

Yes, the Polaris 570 engine is generally considered to be a reliable engine. It is designed with various features to provide long-lasting and reliable performance.

What is the break-in period for a Polaris Sportsman 570?

The break-in period is 25 hours if you primarily use the ATV for light duty. However, running your Polaris Sportsman 570 for the first 10-15 hours at varying speeds is recommended, avoiding full throttle and heavy braking. 

Where is the fuel filter on a 2015 Polaris Sportsman 570?

The fuel filter on a 2015 Polaris Sportsman 570 is located inside the fuel tank. It is a durable, long-lasting component as it is designed to filter out dirt, debris, and other contaminants from the fuel system. 


Although the machine has good power and reliability, the common Polaris Sportsman 570 problems cannot be overlooked. Regular maintenance is the key to keeping your vehicle running smoothly.

It is time for us to go; bye for now!

Mark Williams

Leave a Reply

Your email address will not be published. Required fields are marked *