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

Check your fuses.

I would say based on information that the ignition switch is faulty,worn, or broken and would need to be replaced. Just to double check , it should remain in the acc position and not go back, doubt it would be financially or otherwise attempt to do a repair.

New 2012 850xp won't start - Polaris ATV Forum

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Jul 29, 2012 - With only 6 miles and 2 hrs on my new 850 the battery was dead. ...Location: Mc Minnville TN ... 2012 Sportsman XP 850 H.O. .... code 10.8 on a 2012polaris 850 four atv ... Copyright ©2000 - 2015, vBulletin Solutions, Inc. Broke my first axle
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Thread: Lo 10.8 code - Polaris Ranger Club

when you moved make sure you did not hit the kill switch that will not allow a spark .. the other thing you can try is to see if there is a spark. you can pick up a spark tester at any auto store

ok when you say it wont start does that mean it will not turn over or does it mean it does turn over well but will not fire

pos.wire to pos. terminal
neg.wire to neg. terminal

2 ways f you have a gas shut off on the bike you can shut it off and turn the bike over a few times to dry it out . best way is to remove spark plug blow it dry be carefull not to bend the prob. or just replace the plug any one should help you get it going if you have spark

The clutch is not totally disingauging.

put some grease in the tranny, and while your at it check th back diff too, by just loosening the pumpkin bolt and sticking your finger in there to see if there is enough 75/90, if not just ADD TO THE PUMPKIN till it reaches the top of the bolt hole while the unit is sitting on its 4 wheels it should just be spilling out at the threads put bolt back in and hand tighten then snug but not too tight, tht should do it.

Have the CCA of your battery checked.. Cold Cranking Amps... this is what makes it start.. O'reilly's, Autozone, AdvanceAuto.. a battery shop can check the CCA for you...(they will know what your are talking about!!)