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I have a 05 polaris sportsman 400ho...it starts but as soon as i let the key go it turns off...i can give gas and the rpm's go up but once i let the key go it dies...any suggestions? Thanks.

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Most of the time i have found on the polaris machines the key switch itself fails. has a replacement key switch been tried?

Posted on May 19, 2017

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6ya6ya
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Posted on Jan 02, 2017

draykesizemo
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SOURCE: polaris sportsman 90

Needs a new needle & seat in the carb.

Posted on Feb 06, 2014

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

Testimonial: "Thx"

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"

  • 40734 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

  • 8060 Answers

SOURCE: My polaris sportsman 570 will not start when I put the key and I have power to the lights on the dash but the engine will not turn over. I did turn it off in gear accidently.

If engine does not turn over you need to see if the starter is getting power and if it is any good. Also look for an inline safety switch for the starter that may be stuck in the open position and not allowing the electricity to enter the starter motor.

Posted on Sep 14, 2015

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1 Answer

I have a 08 Sportsman 500HO which the motor starts cutting out between 3600-4600 RPM's


Hi Tom:
Sounds like a challenge.
I'd probably check the ignition system if I thought the fuel supply was working properly.
Replace spark plugs - test run
If there is a manual hi speed adjust screw on the carb, have you tried adjusting it at high RPM?
reply as a comment to this post and I'll try to help.

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