Question about Polaris ATV

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Hi my 2005 Polaris sportsman 500 ho does not want to turn over. it used to and idled fine but once the throttle was applied it did not work it just choked and died, i cleaned the air filter as the box was filled with oil and dirt washed the air filter did an oil change and cleaned the crab out twice I tried to start it this morning but it just backed fired and started to smoke. any idea why it is not working?

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  • 91 Answers

May be fouled plugs. If not check vent hose on carb.

Posted on Sep 21, 2017

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Posted on Jan 02, 2017

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SOURCE: polaris 500 x2 starts fine, but when you apply

I have a 2003 sportsman 500 ho thats doing the same thing. It starts fine everytime and idles fine but when you push the throttle it stalls and sounds like its loading up with fuel. Also its fouling the plugs when it does this b/c I can take them out and they are jet black (dry). I checked the spark and the spark appears to be good. So now I'm in the process of taking the carb apart to see if there is anything wrong with it and to clean it. If this doesn't fix it then I don't know. I really don't want to replace the coil b/c its like 150 bucks.

Posted on Feb 16, 2010

  • 1 Answer

SOURCE: Service manual for a 2006 500 Polaris Sportsman HO

I have a 2006 Sportstman 500HO ATV, EFI. Sometimes it will run 100% correct, other times it will start, idle fine but then when giving it throttle will will start to surge almost like it's hitting a rev limited. Sometimes it will backfire and stall. I already replaced fuel filter, flushed the fuel lines and gave it fresh gas and installed a new spark plug, but no good. I also checked the throttle switch and it's not making contact to stall it. I download the service manaul and tested each sensor and they tested fine which is probablt why I get no check engine light.
This ATV is mainly used to plow snow in my driveway, no salt. It's used around my property but very lightly. It's still as clean as it was when I bought it and it doesn't have but about 40 hours on it.
Polaris 500 HO EFI 4x4 ATV: Vin# 4XAMH50A56B707664 purchased 6-8-2006

gtopercy@comcast.net

Posted on Jul 15, 2010

  • 2 Answers

SOURCE: polaris 2005 sportsman 500 H.O. service manual

Downloaded this last week....its the factory service manual ($3.99)

http://www.tradebit.com/filedetail.php/6901881-download-now-polaris-sportsman-500-2005-05

Posted on Aug 10, 2010

brandonli42040
  • 18 Answers

SOURCE: How to turn up idle on 2013 polaris sportsman 500 ho

follow ur throttle cable down to cars there should be a plastic screw close to cable to adjust idea but with polaris that screw can be hard to find with all the plasticc they put in way but if u can see carbs easy enough u will see the idle screw

Posted on Feb 11, 2014

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How do I replace a starter on a 2004 500 Polaris ATP


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Just bought this bike had no manuals with it I need to know about checking and changing oil


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Tranny works, shifter wont shift the gears. how to fix?


My 2005 Polaris ATP 500 requires I depress the right foot brake while shifting into reverse or down into low range. Perhaps some adjustment on the foot brake to make this work. Also check linkage to make sure it is not binding. Others say if the idle speed is too high, you may not be able to shift. Try shifting with the engine off to see if it goes into the gears, using the foot brake. If yes, try again while at low idle speed.

Mar 25, 2015 | Polaris 2004 Sportsman 500 H.O

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Why will the cooling fan on my 500 sportsman not turn on .?


I have a 2001 polaris sportsman 500 H.O. I have replaced the fan and the thermial fan switch,and checked the thermostat. Everything is either new or works there are no bubles in the coolant when its running I am running out of opptions . If I unplug the thermal fan switch and plug a jumper wire in the fan will run. I thought the new switch was bad and I tested it and it is good

Sep 13, 2014 | Polaris 2004 Sportsman 500 H.O

1 Answer

I have a 2004 polaris sportsman 500 when it gets hot it cuts off and back fires


sounds like the coil is weak or the electronic spark box is goin fuel filter been changed ?right gap on the Plugs? need more imfo on it to do more thks

Jul 29, 2014 | Polaris 2004 Sportsman 500 H.O

1 Answer

How to turn up idle on 2013 polaris sportsman 500 ho


follow ur throttle cable down to cars there should be a plastic screw close to cable to adjust idea but with polaris that screw can be hard to find with all the plasticc they put in way but if u can see carbs easy enough u will see the idle screw

Feb 11, 2014 | Polaris 2013 Sportsman 500 HO

1 Answer

I have a 2008 Polaris Sportsman 500 X2 H.O. EFI, After about 1 to 1.5 hours of riding the main fuse will blow, if you put a new fuse in it will idle but touch the throttle and the fuse will blow again,...


I would look for any excessive water or moisture hidden in an electrical component, or corrosion in any connection points..
double chech that you are using the correct amps fuse

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1 Answer

2005 polaris sportsman 500 clicks fast only in gear and moving. What could it be?


Check your u joints or CV joints. Does the clicking speed up when the ATV speeds up? does it click worse when turning? Is there a stick or something jammed up in there somewhere?

Jun 15, 2013 | Polaris 2005 Sportsman 500 H.O

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