Question about Polaris ATV

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I have a 2016 Polaris sportsman 570 she's got a fuel pump tries starting her she will keep winding over but won't start any help would be nice

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  • Polaris Master
  • 3,425 Answers

Make sure the kill switch is in the run position.

AN engine need three things to run:
Compression
Timed spark
Fuel

now.....
1*. Check the spark plug to make sure it is firing.. remove the spark plug.. make sure you have metal to metal contact and then turn the engine over.. (this might be a two man job).. the spark plug should have a nice big blue white spark,,(some electronic's will have a weak orange and still fire fine!)
2. Make sure you have gas in the tank and (going into the carb/FI)... (have to ask-actually have had 3 bikes in my career come in complaining -won't start...!! Add gas and they ran.. WOW!.. never charged any of them....the embarrassment on their face was payment enough!)
3*. While the spark plug is out... place your finger over the spark plug hole firmly .. keep the spark plug cap away from your hand..turn the engine over and see if it will blow your finger off..(it should blow it off the hole easily).

If any one of these three are not nearly perfect.. you have an issue!!

Check these and repost with the results...

Posted on May 31, 2017

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Posted on Jan 02, 2017

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SOURCE: Fuel pump problems

http://www.motosport.com/utility/oem-parts/POLARIS/2000/SPORTSMAN-500-_-A00CH50AL/FUEL-PUMP-_-A00CH50EB
There is an assembly diagram on the link

Posted on Jun 01, 2013

s_gamingcent
  • 8 Answers

SOURCE: My 2007 polaris 450 sportsman used to start with the pull start 2nd pull,now it starts for a couple seconds and stalls ,does this three or 4 x then starts and runs fine,by the way it won't start with

Could be time to replace battery, this is most likely the culprit. These fourwheelers are very picky when it comes to low power. Your starter is also most likely just fine, the clicking you hear is the solenoid on the starter, so your battery has some juice, but not enough amps to turn over the starter. Also If the fourwheeler has sat for a long time then you may just need to charge the battery. The 2007 is most likely fuel inject which uses even more fuel when running and it also has its own computer kind of like a PCM in a car or truck. These all need a good supply of power and the stator which is like an alternator usually needs the help of a fully charged battery to keep everything running properly. Also note, once you get a new battery or charge it in some cases the ATV should run smoother.

Posted on Oct 19, 2014

hughes783671
  • 1 Answer

SOURCE: My 1996 Polaris sportsman 300 it shut off an won't start it it got loud first but when I tried to restart it won't its blowing gas outta the back of carb

If it is a 2 stroke pull the carb off and look at the reeds u might have a broke reed

Posted on Feb 27, 2015

Testimonial: "Its doesn'thave reed valves, its self oilier but its bbeen disconnected since I had it I just mix it my self but ya the carb just fits right on jug with the a rubber tube my 95 had reeds though thanks for trying"

  • 42705 Answers

SOURCE: Our Polaris Sportsman 500 battery died. We tried to pull start it and it jerked and pulled out of my hands. Now we can't pull it at all. Seems stuck at a high compression. Any help?

maybe the battery is ok but the problem is a lock in the engine --hydraulic lock, crank seizure ,bent conrod
bent valve hitting on piston top

Posted on Aug 29, 2015

  • 12962 Answers

SOURCE: Why does my Atv Polaris sportsman 90 keep blowing headlights???

Lousy bulbs or poor voltage regulation (too high voltage will burn out incandescent lamps especially when you factor in all the bumps and vibrations ). Maybe you can special bulbs designed to withstand the conditions presented by your ATV.

Posted on Sep 08, 2015

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Gary, Faulty fuel pump sending unit. Most of the forums I checked say this a big problem with Polaris, most say the pump and sending unit have to be bought as a assembly.
Check the attached links,instruction and guides, Good luck
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I have a polaris 400 sportsman atv. I haven't started it in 2 plus years, the battery is fully charged, it will not start. I put some gas in the tank.


you probably dont have a fuel pump issue, atv's after sitting have a problem of not starting due to carb gumming up. if its fuel injected, then i would say poss fuel pump but if not, the carb gummed is more than likey the issue.

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