Posted 3/28/2017 14:23 (#5928305 - in reply to #5928045) Subject: RE: Polaris Sportsman 570 not running right
We had a similar problem with our Ranger. We were running 91 octane ethanol free from The local co-op. Dealer said they were set up to run 87 octane. Switched to 87 from the gas station and haven't had a problem since.