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I have a 2017 Polaris sportsman 450 HO efi it turns over but won't start i already checked the spark plug and it has spark and gas just won't fire

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Check the off/on switch...Might not be making a good connection or loose wire

Posted on Dec 03, 2017

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1 Answer

2015 Sportsman 570 EFI won't start and will backfire after a couple of turns


does it have more than a one year warranty

strange
small back fire on an EFI system...
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disconnect battery terminals = reset factory default
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Spark plug gap for a Polaris sportmans 500 a 2010 year


0.028

http://www.polarisatvforums.com/forums/atv-repair-maintenance/14769-spark-plug-gap.html

BKR6ES(STOCK#6364) regular, or IRIDIUM BKR6EIX(STOCK#6418).Gap setting is .028.
That plug is used on all 500 HO from 2000-2011 Sportsman Models.

http://www.polarisatvforums.com/forums/atv-repair-maintenance/40754-500ho-ngk-spark-plug-number.html

http://www.ngksparkplugs.ca/results-motorcycles.cfm?model=empty&enginesize=500&make=POLARIS&apptype=ATV

Here is your manual. Spark Plug page 93. Page 123 says
Spark Plug / Gap NGK BKR6E / .035 in. (0.9 mm)

Different plug (E rather than ES) and gap. check the plug that came out.

http://cdn.polarisindustries.com/polaris/common/parts-manuals/9923420r01_lo_res.pdf

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Where are the sparkplugs on polaris 700 efi


Camae, You really should get a manual. Spark plugs stick out of the cylinder heads with a fairly heavy wire/with Red or Black boot on the end covering spark plug.
Check the attached links,instruction and guides, Good luck
"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."

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She got gas and prark won.t start only backfire


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My 2014 Polaris Sportsman 850 XP started just fine in the cold this morning but when I went to start it again I turned the key and everything turns on but it doesn't start or fire it just cranks ove


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or fuel ice blockage at or near the tank pickup,or flow/noflow valve.
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How do I start a floode 2014 polaris sporstman\


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1 Answer

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


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