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What is the most common Polaris Sportsman 570 problem?
The most common Polaris Sportsman 570 complaints are driveline related. Owners report belts that burn or grenade, clutches that hang up, and hard or grinding shifts. The next biggest cluster is fuel system trouble, from fuel pumps that fail early to injector wiring that rubs against the frame.
The 570 is a strong, popular utility ATV and one of Polaris best sellers. But it has a set of well documented weak points. Most are fixable at home, and knowing them before you buy helps you dodge the worst of it.
Polaris Sportsman 570 engine specs and lineup
The Sportsman 570 uses a 567cc single cylinder, four stroke, liquid cooled engine with a CVT transmission. Power goes through a one touch on demand AWD and 2WD system. That layout is shared across the Sportsman family, so a lot of the fixes carry over to the other models.
Polaris builds the 570 in a few flavors. There is the base Sportsman 570, the EPS (electric power steering) version, the Touring two seater, the X2, and the 6×6. The 2017 EPS recall touched the whole family, so we cover that below.
For a broader look at this engine family, see our guide to common Polaris Sportsman 550 problems and the Sportsman 600 twin problems.
1. Belts that burn, slip, or grenade
Belt wear is the number one complaint across the 570 forums. The CVT belt is a wear item, but it fails early when the machine is lugged in high gear, ridden hard in mud, or pushed with oversized tires. On the polarisatvforums, one owner reported four belts in the life of a heavily used 2019 570 ridden in mud with 28 inch tires.
Running in low gear under about 7 mph protects the belt. Lugging the engine, running too long in low at high rpm, or spinning the belt in deep mud cooks it fast. A burned belt usually smells and slips before it fails outright.
A misaligned clutch or a broken motor mount also shreds belts, because the clutches no longer line up. We cover mounts below. For a replacement, a quality belt and a clutch service kit are the usual route. See the Polaris RZR 570 problems guide for the same CVT family on the sport side.
2. Weak front motor mounts
Owners of 570s built up to around 2020 report weak front motor mounts. They crack and let the engine shift, which throws the clutches out of alignment. That causes vibration, belt damage, and even a belt cover that rubs a hole through.
One polarisatvforums owner found the drain plug could not clear the frame until the dealer notched the frame after a mount failure. Another said his wife’s machine developed belt trouble only after the mounts broke. It is a cheap part, but it causes expensive damage if ignored.
If the machine vibrates on acceleration or shifts hard after a bump, check the mounts before anything else. The mount part is a Sportsman 570 motor mount replacement. The same driveline platform appears in the Polaris Ranger 570, so the pattern carries over.
3. Fuel pump failures
Fuel pump trouble is common, and it changed across the model years. Up to about 2018 the pumps gave owners grief, and 2019 got a new voltage regulator. Then in the mid 2020s a batch of cheaper pumps started failing early.
A 2024 owner on polarisatvforums reported the machine died in motion just after the 25 hour service, and the dealer suspected a weak fuel pump. Others describe a hard start, a rough idle, and a slight stumble that points to low fuel pressure.
Before replacing the pump, rule out the easy stuff: a clogged filter, a bad relay, and corrosion at the connector. When it is the pump, a direct replacement restores smooth running. Shop a Sportsman 570 fuel pump if yours is failing.
4. Clutch that hangs up or shifts hard
Clutch problems show up as a secondary that engages at idle, hard gear changes, or a reverse that grinds and refuses to engage. On a 2015 the owner traced it to a seized primary clutch bearing that transferred torque to the secondary.
Newer machines have their own quirk. Multiple 2024 owners report grinding when they select high, low, or reverse. The polarisatvforums thread points to clutch alignment, a bad primary bearing, or shims that need adjusting. One owner fixed a similar hard shift on an XP 1000 by adding a shim to the primary spring.
A primary clutch that freezes after sitting is another common find, often from moisture or a rodent nest packed in the cover. Pull the belt cover and inspect before spending money. If the one way bearing only spins one way, it is fine; if not, it needs a new one.
5. Stalling when put in gear
A Sportsman 570 that stalls the moment you shift from park into a gear usually has a frozen primary clutch, not an electrical fault. The thread on a 2014 that had sat outside covered for a month found the primary locked in the fully engaged position.
Before tearing into electrical parts, jack the rear up and shift with no load on the wheels. If it moves freely with the rear off the ground, the load is the clue. Moisture trapped under the cover, pitted sheaves, and a stuck flyweight are the usual causes.
6. Valve clearances that close up
The 570 uses bucket tappets, and owners find the intake clearance closes to near zero over time. One polarisatvforums owner measured intake clearances at effectively zero on a 2018 with 125 hours, while the exhaust was still in spec.
This is a maintenance item, not a design flaw, but it is easy to ignore. When the clearances go tight, the valve no longer seats fully and performance and idle suffer. Checking them and swapping the right thickness tappet keeps the engine healthy.
If you buy a used 570, budget for a valve check. Many owners skip it, and it shows up later as a rough runner. This is a job most do at a shop unless they are comfortable pulling the cam cover.
7. Injector wiring that rubs the frame
One owner was stranded at about 2,000 miles when the fuel injector wiring rubbed against the frame and shorted. A piece of trail side tape finished the trip, but it was a real reliability scare.
The fix is to inspect the harness where it passes metal edges and add a sleeve or zip tie it away from contact. It is a cheap, preventive fix that avoids a no start on the trail. Check it during routine service.
8. Gauge cluster that goes out
The digital gauge cluster is a known weak spot on the 570. A heavy use owner reported the cluster died and had to order a replacement on back order. It does not stop the machine, but it hides your speed, gear, and service info.
Before replacing the whole cluster, check the connector and the battery voltage. Low voltage makes clusters act up. If the cluster itself is dead, a replacement restores the display.
9. Wheel bearings and brakes in mud
Ridden in mud, the 570 eats wheel bearings and brake pads faster than you expect. One owner replaced pads every five to six months and a wheel bearing after heavy mud use. It is less a defect and more the reality of muddy, gritty riding.
A wheel bearing greaser is the cheap insurance here. Packs the bearings so water and grit do not grind them out. Keep the pads ahead of the wear bar and flush the brakes after deep water or mud.
10. EPS failure (recall 17-740)
In 2017 Polaris recalled 2017 Sportsman 450, 570, 850, and 1000 models because the electronic power steering unit could malfunction and raise the risk of a crash. Polaris had 15 reports of EPS malfunction at the time, with no injuries.
If your 570 is in that year range, check the VIN against the recall list and get the free repair done. A steering unit that acts up at speed is serious. This is one recall you should not skip.
Fuel leak and fire recalls (17-190 and 17-023)
Two earlier recalls dealt with fuel and fire risk on the 570. In July 2017 the 2014 model was recalled because fuel could leak into the headlight pod, with 30 fuel leak reports and four fires. In December 2016 the 2014 to 2016 Touring and X2 plus the 2017 6×6 were recalled because the air intake duct could contact the fuel rail, with 35 damaged fuel rails reported.
No injuries were reported in either case, but both are free dealer repairs. Fuel smell, a fuel leak under the machine, or a damaged fuel rail are not normal. Get them looked at right away.
What to check before buying a used Sportsman 570
A used 570 can be a bargain if you know what to look at. Start with the driveline, since it is the most common trouble spot.
Ask about belt and clutch history, and listen for hard shifts or grinding. Check the motor mounts for cracks, since they cause expensive secondary damage. Look for fuel smell or signs of a fuel leak. Test the gauge cluster, the EPS if fitted, and the shift into every gear including reverse.
Ask when the valves were last checked and whether the owner rides in mud or plows snow, both of which shorten belt and bearing life. A machine that shifts clean, starts cold, and shows no fuel smell is a good starting point. See our Sportsman 500 buying notes and the Yamaha Kodiak 700 for a strong comparison machine.
How to keep a Sportsman 570 reliable
Most of the common issues are preventable with simple maintenance. Run the correct gear for the job, keep the belt clean, and check the mounts.
Change the oil and filter on schedule with a quality 4 stroke synthetic ATV oil. Grease the wheel bearings if you ride in mud. Inspect the wiring harness for rub points. Check the valve clearances at the recommended interval. None of these are hard, and they head off the expensive failures.
For shop supplies, a good synthetic 4 stroke ATV oil keeps the engine happy between services. If the belt is due, the drive belt is the part to have on hand before it lets go on the trail.
Polaris Sportsman 570 Drive Belt
A worn or misaligned belt is behind many Sportsman 570 driveline complaints. See today’s price on Amazon.
Bottom line
The Polaris Sportsman 570 is a capable, popular utility ATV, and most of its problems are known and fixable. The driveline, the fuel pump, and the motor mounts are the things to watch, and the recalls are worth checking on any used machine. Buy one with a clean shift, a dry fuel system, and healthy mounts, keep up the basics, and it will serve you well.
