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Polaris Sportsman 90 - stalls

I have a Polaris Sportsman 90. It will start and idle but when you throttle it boggs down and stalls.

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I have one doing the same thing the choke is all the way on and it is warmed up but when you give it gas it goes for a while then boggs out

Posted on Jan 14, 2013

  • david forsythe Aug 17, 2013

    clean your carb and run higher octane gas than regular. like plus or premium. regular gas causes more frequent build up inside your carb . and if the four wheeler has been sitting for some time, it will definitely need to be cleaned.

  • john a fountain Oct 06, 2013

    I'm having the same problem but when I 'm in reverse it runs good and won't bogg down

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Is the choke in the on position? Have you warmed it up enough?

Posted on Sep 11, 2009

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Just replaced new gears and the stater in a 2005 polaris 90 sportsman,,revs up fine in neutral,,but once in gear loses power and want pull ,then dies if you keep trying,,starts right back up no problem


I know virtually nothing about a 2005 Polaris 90 Sportsman, but your problem sounds like it could be a fuel starvation problem. Check the fuel filter (assuming it has one!). Good luck!

Oct 26, 2017 | ATVs

1 Answer

Polaris Sportsman 90 it bogs down/stalls. new carb. it will rev up in neutral. however when you put it in gear bike will only run for a few minutes and then stall or quit running. will restart .


Check the Flywheel key. It should be locked under the pull cord, where the stator is located. I will be a small piece of metal that slides into the spline from the engine and the stator. If it is worn the stator will rotate off the spline and the timing will be off, she won't start and if she does will be really rough and backfire, sputter and have power loss.

Dec 08, 2016 | Polaris 2006 Sportsman 90

2 Answers

Starts and idles fine runs half throttle when fuel is applied


Harry, dirty carb or injectors.
Check the attached links,Manuals and guides, Good luck with your Bike
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."

ATV TROUBLESHOOTING AND MAINTENANCE
ATV Service and Repair Manuals
http://www.carlsalter.com/motorcycle-manuals.asp

Jan 06, 2016 | ATVs

1 Answer

Sportsman 90 idles wont rev


Replace spark plug (gap correctly),Drain all fuel, replace fuel filter, replenish tank with fresh fuel, do a thorough readjustment of the carb settings (last resort - remove and rebuild carb)

Feb 17, 2015 | Polaris 2008 Sportsman 90

1 Answer

Engine won't idle /sometimes backfires


Check the MAF-MAP SENCER or it's a throttle position sencer is bad check both by replacing them and see if it works or the last result is idle control valve

Mar 24, 2014 | Polaris 2006 Sportsman 450

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

Dec 06, 2017 | Polaris ATV

1 Answer

Idles great but open the throttle it misses and backfires


sounds like you have an air leak on the intake somewhere

Jul 12, 2017 | Polaris ATV

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