2009 Polaris Sportsman 500 H.O. EFI starting problem. PLEASE HELP

Polaris Sportsman 850 Quits After Running 10 Minutes. 2013 Polaris Sportsman XP 850 HO EPS EFI ATV Features, Benefits and Once it has set and cooled off for around 2 hours it'll start back up and run fine. Seems make sense that with the full 12V rather than ~10, a sensor that's already putting out a high voltage would be even higher and make the problem worse.

I have a 2014 570 EFI Ranger Crew .Although my problem was not the ground as you spoke about in your post but it led me to checking all that out which checked out all good, but I did pull the spark plug wire out of the cylinder head to see if there was a problem there which it was not or didn't seem to be, so I reinstall the plug wire not really. The bizarre part is that if you let it sit for about 5 minutes, it starts back up again and runs great again.

2012 Polaris Sportsman Touring 850 HO EPS Review

Wait for at least 30 minutes before reconnecting the battery cables, starting with the positive cable. 2022 Sportsman 850 / XP 1000 Owner's Manual P/N 9940175 Seems make sense that with the full 12V rather than ~10, a sensor that's already putting out a high voltage would be even higher and make the problem worse.

20092017 Polaris Sportsman 850 Slip On Exhaust Performance Package. Seems make sense that with the full 12V rather than ~10, a sensor that's already putting out a high voltage would be even higher and make the problem worse. 2022 Sportsman 850 / XP 1000 Owner's Manual P/N 9940175

The 10 Best Types of Polaris ATV Four Wheelers My Westshore. 2022 Sportsman 850 / XP 1000 Touring Owner's Manual P/N 9940172 Engine Stops or Loses Power; 10.10.8: Diagnostic Display Code Definitions; Chapter 11: Warranty