Engine was pulled out of a 2014 kx250F AF KX500 chassis Engine is 89 when you decode the case cover part # Swingarm bushings are installed for this bike to fit the modern kx swing arm axles Clutch cover will need repaired Engine is rebuilt by Tom Morgan racing its fresh Needs clutches put in the bike as well as the old ones are just no good Needs a set of reeds as well Comes with ecu and all wiring This is a beautiful engine for someone to af swap as well