2008 Polaris Sportsman 500 EFI/X2/Touring/500 H.O. Service Manual, Page 71Get this manual
ENGINE If the crank rod pin location is 180o from the dial indicator (opposite that shown above), it will be necessary to spread the crankshaft at position as shown in the illustration at rightWhen rebuilding and straightening crankshaft, runout must be as close to zero as possibleNOTE: Maximum allowable runout is .0024"3