HARLEY XR/WR Inner Magneto Mount Plate Fits 1947-1952 WR,

XR/WR inner magneto mount plate with the magneto adapter screw set allows magneto to rotate on mount plate to adjust timing and magneto position. For use with the Burkhardt Magneto Assembly. Requires the separate purchase of a collar to hold the Magneto rotor in place. *NOTE: Machining modification to the left side case is necessary for installation. *NOTE: Includes 4 - 1/4 inch-20 x 3/8 inch flathead allen screws. FITS HARLEY: 1947-1952 WR,