B's Powersport 0 Report post Posted March 18 Hey Guys and Gals, new to the forum and to Polaris! I just picked up an 02 sportsman 700 with a bad crank and broken cylinder. Was wondering.. Seeing as how I have to rebuild it anyway... Can I just put an 800 cylinder and pistons in the bike to make an 800? If not can you give me some modifications I should do? Gotta rebuild, masel make it better.. Share this post Link to post Share on other sites Like what you are reading? Please help us by sharing this content.