Polaris Sportsman 2008 Polaris Sportsmans 300 Smoking December 9, 2015 Hi I have a 2008 Polaris Sportsman 300 FC that smoke real bad at startup. Once the Engine warms up it goes away. However, I know its burning oil since I have to add a small amount every 2-3 rides. Does it sound like bad valve seals? Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related