Polaris Sportsman 570 Starting Problems (Solutions Included)

The Polaris Sportsman 570 is a beast in both function and size, and this allows it to ride on some of the most demanding trails in the world. However just after getting on the ATV you may immediately start experiencing problems with the Polaris Sportsman 570. Specifically problems with starting up this spectacular ATV. Here’s more on that and what you can do when you experience any of the following problems.

Table of Contents

1. Engine Cranking But Not Starting

This is when you turn the key or ignition of the Polaris Sportsman and you can hear and feel the engine cranking or imparting the rotation of the starter to the engine but what ends up happening is that the engine doesn’t pick up on this and so it doesn’t start. This can can be a frustrating problem to deal with especially on something as premium and rugged as the Polaris Sportsman 570 but it is quite a common starting problem.

What You Can Do

  • Check the battery located on the front part of the Polaris Sportsman 570, you will need something like a battery tester or something similar to check that the health of the battery is good.
  • In the case where the ATV keeps having the cranking and not starting problem then you most likely have a deficient battery that needs to be replaced.
  • If you replace the battery but the Polaris Sportsman 570 still isn’t starting then you need to change the spark plug of the ATV.
  • If you do not have a battery tester to check the health of your battery, you can try using a voltmeter (which is cheaper and easier to find.) If you test the voltage or difference in current of the battery and it is below 12.3V then your ATV’s battery definitely needs to be replaced.

2. The Engine Is Totally Idle Because  of The Corrosion of Electrical Connectors

In order for an ATV like the Polaris Sportsman 570 to start up it needs electrical power and this is given or transferred from the battery. Unfortunately the Polaris Sportsman 570 may have some problems starting up because of acidic corrosion to the connectors that connect the ATV to the battery. This however may not only cause the ATV not to start but also make it stop without warning when you manage to start and ride it for a couple of miles, which can be quite dangerous for a rider. Corrosion of the electrical connectors (from the ATV or battery [nodes]) disrupt or completely stops the flow of electrical current.

What You Can Do

  • You may have to clean off the acidic corrosion with sand paper (by brushing off the corroded parts) sander.
  • You can also replace the electrical connectors themselves on the ATV, this is to make sure that the battery transfers power through these connectors effectively to start the Polaris Sportsman 570.

3. The Effects of A Deficient Spark Plug On Starting The Engine

A spark plug is the part of an internal combustion engine that forms a high-voltage electrical spark which ignites the fuel and air mixture to begin a power stroke. Therefore a spark plug that is deficient; i.e. lacking power or having weakness will cause the engine of the Polaris Sportsman 570 not to start at all, now the problem of the deficient spark plug is usually due to a faulty fuel injector (if the spark plug becomes deficient early) or it may be too old and need replacing (more on that later.) You will often know that your spark plug is deficient or on the verge of not igniting properly if your Polaris Sportsman 570 starts showing problems of misfiring or backfiring.

What You Can Do

  • If you are capable of doing so on your own, you can unscrew the spark plug from the ATV’s engine (there’s only one) and replace it with a new one.
  • You can also clean the spark plug of the ATV when you remove it by using an alcohol based solution to clean off any dirt (usually just greasy black oil.) Then use a blow torch on the part you just cleaned to reinforce the structure of the spark plug.
  • Do not do this if you are not sure how to do it. Instead make sure to take your Polaris Sportsman 570 to a qualified mechanic to better solve this issue that causes the starting problems on your Polaris Sportsman 570.
  • You may also need to replace your fuel injector alongside the spark plug.

4. A Faulty Fuel Pump Will Cause The Engine Not To Start

This is also commonly known as a fuel injector and it is a device that is apart of the Polaris Sportsman 570 engine that is responsible for delivering a metered (measured) amount of fuel, much like an aerosol can spray, into the intake airflow or combustion chamber of the engine of the Polaris Sportsman 570 engine. This fuel is then mixed with air to create what is known as combustion (which in sequential continuity makes the engine produce movement.) However if there’s a problem with the fuel pump, the ATV will have a problem starting as well because no fuel is being fed into the combustion chamber.

What You Can Do

  • If you have a faulty fuel pump then you need to replace it immediately because your engine will not start as it should or have what’s known as a hard start.
  • To avoid any damage to your fuel pump and also limit any starting problems that may incur with your Polaris Sportsman 570, make sure to change the fuel in your ATV after every six months.


As you can tell with most of these starting problems with the Polaris Sportsman 570, most are caused by damaged, worn out or aged engine components or other things that are essential to the engine’s function. The Polaris Sportsman 570 is a great machine but like every other great machine, it comes with problems. Especially because of the extreme activities you will put the ATV through.