Polaris Scrambler XP fouling plugs 850 scrambler le June 13, 2015 anyone else having issues with fouling plugs? dealer says its because not running prem gas. after switching fuel to 97 octane stills fouling. checked air filter its clean. just put new plugs in 2 heat ranges hotter. will see this weekend if it fixes Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related