OS MAX FX .46. Spares or Repair. Aircraft that was crashed. Engine is complete. 1 repair made by a friend who aluminum welded the back plate to hold the remote needle valve many many years ago. Never had an issue. The other repair needed is a split muffler bolt channel. I don’t have the muffler. Engine has been stored and oiled and looked after for years. Bearings seem fine and the compression is strong. Carb is also free and moves smoothly.